I'm subscribing to Cedega and am using the open source drivers (the fglrx one just doesn't work). Not gonna change my hardware now (maybe when AoC launchs... )
AO worked fine this evening (Battlestation was laggy as hell, but still, i didn't crash). Gonna have to test it a bit more to see if it's more stable or just random.
Thx for your advice, Gwen!