MouseWarp
Spaces is new in Leopard bringing virtual desktops to the masses. Leopard gives you a number of ways to switch between spaces including a menu-item drop down and configurable keyboard shortcuts.
To move a window to another space you drag it to the edge of the screen and wait a moment but curiously you can't use this great technique without a window to switch!
MouseWarp adds that missing feature and provides configurable delay, an optional keyboard modifier to activate it and the choice of whether the mouse stays where it was or flips to the opposing edge on the new space.
BitRocket
I've tried and recommended a number of BitTorrent programs in previous Mac software posts but BitRocket sports a great modern Mac look. The user interface tends to get a bit confused wen switching around a bit but being open source this could be fixed quite promptly.
Update: I can't recommend this program whilst it crashes so often, check out the alternatives Jane suggests in the comments.
LiteIcon
Tools to replace the Mac's choice of system icons are surely only going to get more popular with Leopard's annoying almost-identical watermarked folders. Whilst LiteIcon isn't quite as slick as the commercial app CandyBar it is $29 cheaper and still lets you use the multitude of pre-made iContainer packs from the likes of IconFactory.
Think
Are you one of those people that get distracted by other apps on the screen? Me too, which is why I now use Spaces but Think is an alternative darkens the other running applications to your taste.
Carbon Copy Cloner
If you are a Boot Camp user like myself you might want to be able to backup that Windows partition to disk somewhere and Carbon Copy Cloner comes to the rescue. This is fine for the occasional backup but I'm finding myself wanting something like Time Machine for Windows - suggestions anyone?
MacHeist
MacHeist is an odd concept to explain but starts with a couple of free apps and alternate reality game. If you can solve the missions then your name is probably Jonathan Creek but the rest of us can take tips, or combinations wholesale, from the official forums where those with more brains, resources or time have collaborated on solving it.
As you enter more combinations you unlock additional free (but non-upgradable) applications and the odd discount for a forthcoming bundle in January which you are under no obligation to buy. You can also get an extra free app for Christmas by referring a friend. Just remember to backup the downloadable installers and serial numbers as once they're gone that's it!
So far the apps are (and I'll update this tomorrow when I can unwrap the other three:
WireTap Pro
WireTap Pro lets you record any sound your Mac can make - thereby effectively allowing you to rip anything you can play if you don't mind the the degradation in quality of lossy re-compression. It also lets you record snippets from DVD's you are watching or games you are playing for perhaps review purposes.
BitClamp
Encryption has lots of uses, not all nefarious, and BitClamp offers simple drag-and-drop encryption of your files into 256-bit AES or Serpent encryption or super-secure 448 bit BlowFish. It also offers gzip compression and the ability to bundle a Mac-only decryption program into the file.
Mouseposé
Screencasts are getting slicker by the download and now includes web-cam-in-picture and a variety of keyboard and mouse triggere effects so you can see what they are doing. Mouseposé won't help you with the webcam bit but it can darken the rest of the screen and highlight the mouse, visually show clicks on the screen and display your keystrokes.
Runic
A free game that I haven't yet played, sorry. The only gaming I've been doing of late is Guitar Hero II/III although I'm hoping to get a couple of DS games tomorrow as well as a nice backpack to store my shiny new laptop in :)
Wallet
An address-book style application for storing items such as credit card numbers and serial numbers/registration details secured with 448-bit Blowfish encryption.
Catalog
Let's you store an index of all your media on your computer for ease of scanning. These sorts of programs made sense in the days of floppy disks and small hard drives but seem pointless to me now...
Enigmo
Weird puzzle game that bears a little resemblance to the pipe-mania style games (that also made an appearance in BioShock under the guise of 'hacking').
Podcast Maker
Assembles XML files to describe Podcasts with support for adding images and links. Useful because it's free but I can't see how anyone would have previously paid $29.95 for an interface to editing specific XML files.
Freeze Frame
Allows you to pause applications when you need the CPU back. Err, okay...
Voice Candy
Here's a cool fun little app reminiscent of 80's TV show Whizz Kids and later messing around on my Amiga. It basically lets you talk into your computer whereby it will adjust the waveforms so you sound different. Like a chipmunk, Darth Vader, a robot, on the telephone, on an old radio, like a bad sci-fi movie, a sore throat or a mouse. You can also record the audio for later mixing up in GarageBand. Good fun and if the next version includes configurable effects I might have to actually buy a copy.
DEVONnote
Note taking and organising application.
Hana
What appears to be a minimalist browser on top of the WebKit/Safari engine.
Billy Frontier
Space cowboy shoot-em-up game.
Monkey Lover
What appears to be monkeys fighting for their life on an American Football pitch. Not really my thing.
Sofa Control
Extends the use of your Apple Remote to applications besides iTunes and FrontRow :)
Xslimmer
Another tool to prune applications of the languages and architecture segments you do not require albeit with a much better interface than Monolingual.
Hope you have a great Christmas (or a great Tuesday if you don't celebrate that ;-)
[)amien
The screen is fantastic, a little brighter, and provides me with a desktop-like experience in terms of real estate thanks to the combination of the increased size and the high-definition 1920x1200 option. I had examined the glossy finish in-store and found having my face and the rest of the store glaring back at me far too distracting for real work (it might be nice for watching DVD's in the dark I guess) and so went with the matte finish. Surprisingly it is a little more reflective than the older MBP but not overly so and it does make removing unwelcome fingerprints easier.