I'm not sure how a 75Hz refresh rate is necessary, as you'd need a 15ms pixel response, currently the lowest on the market in certain 17" LCDs, to achieve 60fps/Hz.
The contrast ratio is also somewhat false, as it doesn't necessarily mean you get blacker blacks--on the contrary, it seems monitors with very high contrast ratios just have blindingly bright whites.
Sxotty, 17" monitors have the current fastest response times, ~16ms. Two are the Hitachi CLM174 and the NEC 1760 (IIRC). GamePC has a few LCD reviews you might want to check out, as well as (*shudder*) Tom's Hardware. Ars Technica has a HUGE LCD thread in their A/V forum--check out the last few pages, at least.
And make sure the ones you see in person are hooked up via DVI.