Win7 runs pretty good in D945GCLF (1.6ghz single core w/2gb ram) and D945GCLF2, even Aero works decently. Don't expect a lot out of it, but it's good enough. I'd say it's about on par with XP. However watch out for compatibility issues. My copy of photoshop 7 runs very unstable... that's the only proggy I've had issues with so far, other than the free version of RealVNC not working at all with win7. The paid version works great.