I agree that Dells are the best brand of computer you can get. Before I started to build my own computer, I used a Dell system. If you want some information on cameras and the kind of system needed to do video editing, then surf on over to
www.techtv.com and do a search on video editing. The folks at TechTv seem to have a good understanding of what you will want to have in a system for video editing.
I'm going to check out that site right now.