Trev, I think I've mentioned my favorite garage web site here before:
www.garagejunkies.net
Lot's of ideas there.
I made provisions in my garage for a 2-post lift. I have 10 foot side walls but added scissor trusses in one bay. That stall has 13 1/3 feet of clearance to the ceiling (in the center).
Plan ahead for floor covering. If you want to epoxy the floor eventually it's a good idea to put down a vapor barrier under the slab.
Tom