I’ve been playing around with Virtualbox here at work the last few days (all our MMO games have windows clients, I have a Linux at work), and I must say I am pretty impressed. Before someone comes around the bend and yells “but my favorite virtualisation software XZY can do that too”: I’ve tried a few and Virtualbox is: free, stable, easy to setup and use, has a good performance. The latest version supports Direct3d, so now I can run games that caused problems with wine. Creating snapshots are a breeze too, so I can revert the whole system back to a “clean” version without any problems if I want to test something.
A tip: boot the windows guest into the “safe mode” (press F8 after the BIOS sceen and before windows start to boot) and install the “Guest additions” while in safe mode, had trouble with direct3d if installing in the “normal” windows.