Choose the right hardware to build a squid proxy server (200 users)

Question

I need to prepare a squid proxy server for my company. We have a new fiber connection (100 mbit) and I need to give access with user and pass, speed up navigation with caching and do a little web filtering. The only thing that I would really care about is correctly sizing the proxy's hardware because I do not want it to be our new connection's bottleneck.

I'd prefer to spend the lowest possible but I'd appreciate hints about what I really should get:

Ram? Cpu? Fast disk? Gigabit ethernet?

Thanks to anybody who'll help.

Solution

This document may give you some ideas/pointers/references

Comments

[Justin Higgins]

Are you sure you need a squid server with a 100 mbit connection? proxy hits are pretty minimal and your connection is so fast anyway. I would just pursue the web filtering route if that is needed. Not much hardware is needed there.

[Pitto]

So I'd just need authentication and web filtering... What kind of hardware would be good, then?