The server does get a little busy when it gets over about 160 players. Another solution would be to buy a nitrogen cooled beast...nah...helium cooled beast of a computer. I hear that some body clocked an AMD? cpu at 6.5Ghz with helium cooling.
I've also got a cunning plan I'm working on as another way to deal with the load problem. It is very cunning and probably will not work but if it does...
Proud member of "the most paranoid group of people in the community"