It would help if you answered the following:
1) What games will these servers be serving?
2) What OS will you be using?
3) Will these servers be co-located? If not, where will they be?
4) What's your budget for each server?
5) How many servers are you planning to buy?
6) When do you plan on building/buying these servers?
1) What games will these servers be serving? Counter-strike source and counter strike 1.6
2) What OS will you be using? Linux.. Most than likely..
3) Will these servers be co-located? If not, where will they be? Texas
4) What's your budget for each server? 2,000.00
5) How many servers are you planning to buy?1
6) When do you plan on building/buying these servers? Within 2 months.