For what it is worth, I appear to have gotten very lucky in this regard. The search for 64bit drivers was not nearly as hard as I thought it would be. Lets see now, Epson 1660 Photo Scanner-no problem AL1706 LCD Monitor-no problem HP w2207H LCD monitor-no problem HP a6300f computer including motherboard, all chipset drivers, sound, lan, keyboard, and mouse-no problem. Logitech Webcam-no problem APC Uninteruptable Power Supply-no problem ATI HD2400 Video Card-no problem So I guess thats it and I should be ready to go. Point of interest to me will be to see if the Crucial 2gb ram dimms can be overclocked more than the previous ram I have been using. Also of interest to me will be whether or I can just upgrade from 32bit Vista to 64bit Vista or do I have to do a reformat. Installing of software I don't gather is a big deal as the stuff that really counts like Microsoft Office is 64bit also.