Thanks for all the input guys!
We plan on having pretty highend machines (athlon 2600s + 512mb + GF4-ti4600), so we're not too concerned about not being able to play resource-sucking games. What we *ARE* worried about is spending $10,000 on software. We plan on opening up with three games, and I wanted a sampling of the most popular; unforunately, AT doesn't allow people to vote for 1st, 2nd and third place.
We had already gathered that HL:CS and BF1942 are 100% shoe-ins. We're really hardup for our third game -- go with a MMORPG that will suck down people's time (aka Diablo II / EQ) or an RTS (sc/bw or wc3). Unfortunately, those results are pretty inconclusive.
Oh, and just because everyone asked, there'll be 25 PCs with the specs above, 3 servers, a T1 with some sick upstream peering (AT&T, UUNet & Qwest), with 19" Samsung 955DF flat crts, black unbranded dell quietkey keyboards and MS Intellimouse Explorers, all running on WinXP Pro.
We will be located in Colorado Springs, CO, right downtown -- we are supposed to sign our lease on the first and open our doors on either the 7th or the 14th (monday opening gives us a few days to work out bugs before the weekend).
thanks guys!