[Lee Hopper]"BIG question, what type of computer and software do I need?"
Well...pretty much anything will do it, software wise. Avid Media Composer and Adobe Premiere work with the MXF files the camera produces natively...but you still need to copy the files from the cards to a media drive, AND back them up. FCP wraps the footage into QUicktime. FOr that workflow, you can watch this: Tapeless Workflow for FCP 7 Tutorial
So pretty much any major editing application will do.
Computer? Well, on the Mac side, MacPro, MacBook Pro...iMac, MacMini...will all work. Firewire 800 drive will playback the footage fine
BLURAY encoding? You need Toast 10 or Adobe Encore.