I don’t know the timeline for when the new server will come in, but I have heard the specs and believe me we can run more than “another dedicated server or two”
My suggestions:
current:
CS 1.6
CS:S
TF2
L4D
new:
CS:S 24/7 de_dust2
CS 1.6 24/7 de_dust2
3 additional left4dead
Day of Defeat: Source (24/7 dod_avalanche)
Modern Warfare 2 (when it is released)
L4D2 Server(s) (2 minimum) (when released)
Private WoW server