Anyone on an iMac?

[damooster]

New to the game and just wondering if there are any other Mac users out there. I have the 17" iMac.

Some of the specs are:

2.0ghz Core 2 Duo
2GB Ram
ATI Radeon x1600 (with I think 128MB)

I run the game on medium settings because I hate lag (whether it's latency or computer lag). I pick quiet servers but sometimes the game will hang for a couple of seconds when I zone or enter a highly populated area. It's not game changing but I'm just wondering if there is anything I can do to improve performance. Should the game resolution match my desktop resolution? Also, I read somewhere on here about editing a game settings file if it's an ATI card, but I can't find it again.

Thanks for any and all help.