I also run under Linux with cedega.
Athalon XP 1800, 1GB PC2100 RAM, FX7500 Ultra video.
This is an old system, but it seems to run well now.
cedega-4.1-1
I suffered all the problems others have mentioned. However, cedega-4.1-1 cured most of my problems, and when I recently replace my aging Netgear router FM114P with a new (and updated firmware) Linksys WRT54G, the last issue of getting dropped all the time is now also gone.
As I mentioned in another thread, the issue of getting dropped all the time was related to my daughter's wireless card. Whenever it had issues and would reconnect, I would get dropped from the game. This issue was definately a router issue, and it no lnger occurs with the new router. She still has issues (which I now believe to be driver related).
As far as her wireless driver issue, I put in the new SUSE 9.2 live DVD and had her play with that for a full day. She never once had a disconnect / reconnect from the router. She is currently using the orionco driver, but the SUSE test defaulted her to the madwifi driver, so I will make that change for her. Her card is a Netgear 411 (a 311 in a special PCI card).