how many computers are needed?

i\\\'d like to use squid as a proxy server of internet game stores.
numbers of stores are about 3,000 and they have about 30,000 pc.
their computers usually used to do network game like starcraft and chat.
main customers are students.
how many computers to do proxy service are needed?
the computer has 500Mhz cpu, 512M Ram, 12Giga scsi hard.
Received on Wed Oct 27 1999 - 22:07:07 MDT