Hardware for LD server

Hello All!I have about 500 users who use 5.0.11 client (WinXP) and a 5.0.11 LD server (Win2003). Recently we’ve decided to buy another machine for our needs. At the peek of the day I have about 270 clients connected to the server. What is more - in the near future our company migrate to LN6.5.3 solution. We use original LN mail&calendar only.

What I need is a guide or link to a resource where I can find some technical info and recomendation of IBM for the preferable hardware in particular environment.

Thank you!

Subject: NotesBench will help

http://www.notesbench.org/bench.nsf?OpenDatabase

Subject: RE: NotesBench will help

Thank you Alan! Tests there are started with more than 2k users. I guess our Xeon 2.39 Ghz 2GB RAM will run all 500 users of mine.