Thanks, I've always wanted to know that, and I was having a bit of a heart attack because if I would've had to install DX10, I'd have to install Vista too...definitely not going there.
Oh, and just to revise my earlier post some, I've now ordered my PC parts and I ended up getting a GeForce 8600 GT rather than a 8500 GT. And I've upped my RAM to 2GB also...
Now I just pray I'll be able to run Bioshock, because if not you'll all be looking at a pretty pissed off Abandonian.