I've used someone elses computer that had 7 on it, but haven't had it on mine.. Was neat looking with the transparent windows.. I went through and turned all that stuff off, to see if it performed any better than xp32bit for 3D games.. Not much difference, but the hardware specs of their machine weren't very good for gaming, built in graphics, etc.. I didn't have the hardware or software to take advantage of it's perks, still don't have the RAM to need a 64bit OS, or photo editing apps that can use all the cores of my processor, so I haven't really considered getting it till recently.

Currently have xp64 waiting for ram and a high clocking Core 2 Duo, if there's good photo editing application support for all the cores of my qx, I'll get windows 7 and more ram. I just don't have the hair in the right place to work on that computer..

Been tooling around on my socket 939 gaming rig for about a year..

Gonna switch over to my other computer soon though... Dual 8800 gts 640MB factory OC in SLI, qx6700, 2gb pc2 9200 (hoping to upgrade to 6 or 8GB)
have 4x 30GB OCZ vertex SSD RAID 0, 2x WD caviars RAID backup...

Most of the guts are old stuff compared to what's out there now, "core i7", graphics cards etc.. but it's GOOD old stuff, that still holds it's own.. Mild overclock with the LGA775 pin mod put's the qx6700 at 1333 fsb and 3.1GHZ, watercooled too