Hi, I have a dimension 9100 Pent4 3ghz desktop that I bought a few months ago. I have upgraded the ram from 512mb to 1.5 gig. I upgraded with the Crucial brand that is actually faster than the 512mb ram that came with the comp. It runs at the 512mb speed. I have a 80gb HD. I plan on a second 200gb Seagate HD. I don't know if it is even possible but I also want to install the floppy drive from my old Dell latitude into the 9100. I tried to install a tele/fax modem from a Dell 8100 model, but I haven't figured out where to plug in what I think is the power line. I have a dvi monitor and a 17" crt. I will probably be replacing the crt monitor with another lcd monitor. Later on I would like to get another card and plug in additional monitors. Can doing all these upgrades harm my computer?