I'm considering adding a wired network to my house. It's more secure and
MUCH faster than WiFi.

What category should be use for FULL SPEED gigabit networking? I've read
that Cat5 and even Cat5E won't quite do the job. What will do it, how much
might it cost and where can I get it?

Home Depot has Cat5E in bulk, but I would hate to be limited to 100BaseT.

Chris Schumann