I was looking at the official site, and it appears the requirements for the game have dropped some, down to a regular Radeon 9600 for video... which I've got. Earlier they were stating a newer chipset would be required, but with it just being a regular 9600, I'm hoping performance will be about like TF2 for me... not pretty, but playable.

Looks like the retail version's gonna be on DVD, which means I'll have to buy a new DVD drive to replace the busted one (and still no internets at home), but hopefully this means I'll be able to play in a couple months after my hand heals, and not a couple years after saving enough to build a new system. Wish I could try the demo, but it's bigger than my little bitty 1GB flash drive