Ron, here is a few sites that might give you some ideas,
This one has some pics of a few diffrent looks
http://www.geocities.com/PicketFence/2090/model.html
This one has a pretty good garage that has lighting but the highlight for me was the modeling room upstairs with the scale scale models!
http://website.lineone.net/~declan.oreilly/index.htm
Heres another that has all sorts of auto dio accesories. Might be able to get some more ideas from here too
http://www.scalemodelingbychris.com/page_two.htm