Hi all, I recently upgraded my Dell XPS 700 with a faster quad-core processor and a GeForce 9800 GTX. I also bought a small (80g) 10,000 rpm disk which I plan to put my system and apps on, and then I have 2 internal 500gb disks, one internal 250 disk, and one external USB 500gb disk. I was thinking that one of my disks be used for photos and document, and a separate disk for cache's, pagefiles, scratch, etc. Does this make sense? Also, since I have 4gb ram installed and can go as high as 8gp with this particular MOBO, I was thinking of going with a 64 bit version of home premium. I am a little nervous about it and will probably install 32 bit first just to make sure everything works together well. I know me, and I'll keep thinking I should try 64 bit, but like I said, I am nervous about it. I know some are using 64 bit versions and I was hoping to have some advice about potential benefits and pitfalls to avoid if I go 64 bit. Any advice, encouragement, warning, etc would be appreciated! I want to run the usual apps, CS2, NX2, IDimager, etc as well as office, utils, etc. I won't be loading any big games on my C: drive, so I hope 80gb is enough.