Link worked for me.
I can run it on Medium for DX10. Better than DX9 Low though. I average out at 25 FPS. (17 if I'm recording. Still playable though.)
Found a good Radeon 8000-something at OfficeMax for only 80 bucks. Saving up for that. Should be able to run it at DX10 High AT LEAST. (Just guesstimating though. I have a Radeon HD 6530 so I figure it's gotta be at least around there.)