Let the seams out a bit on my old dual Pentium-3
I'm still running some software that just doesn't work on the 32-bit section of 64-bit Vista, so I'm still getting a lot of use out of my old iron.
I just substituted some 140 GB hard drives for my old C and D drive (34 and 70 GB respectively) in the Pentium-3 so at least I've got a bit more elbow room now. It was getting a bit tight there.
My new system has three 500 GB drives (holy crap). I always have separate C (OS/application) drives and D (data) drives, but I haven't figured out what the heck to do with the third drive yet. Probably video stuff.