What is your system? What do you want to keep? I upgraded my motherboard a couple of times. My old all-in-wonder video card won't go into the new boards that are mostly agp. My 100 sdram would fit but it would slow down the 166 bus. When I went up to XP I had to buy a drive because XP won't run on fat 32. I wound up leaving my data on the old drive and installing a new operating system rather than formatting my old data and drawing files. So, what is your current operating system, motherboard, processor, memory configuration?