Quality Rates

My computer has the specs
3.2 ghz HT P4 Processor
128 mb ati radeon 9800 pro
1024 mb of RAM

I need to know what "Game Quality" is best for my comp. Low,Medium,High, or Ultra? thanks.

You'd probably be best off experimenting with the quality settings. There may be raw numbers, but in reality every computer is different. A good place to start, though, is trying 800x600 at High quality, and if that runs too slow, turn it down a bit.