Looking for a Large-format Multi-function?

I just got the go-ahead for this, I'd been asking for a scanner for a while, and my boss says we should go for a multi-function.

I am leaning toward the hp DesignJet 4500 scanner. It looks like it can do all sorts of nice things.
I did a search on the autodesk newgroup's hardware forum but, the initial search came up with posts 2-3 years old, and an expanded search comes up with too much junk to read through. I tried doing a search for CADalyst's lab reviews, but, could only find scanners or printers.

I'm not really concerned about space, just about ease of use. I'd happily accept any opinions from people who have purchased and used this type of system.