Pimp my garage: Lifts and other questions

[BodhiBenz1987]

Well, my move-in date is almost here ... I have 10 days before it's time to inhabit my new house, and more importantly, 1,300 square-foot garage. As such, I have a handful of questions, and welcome any suggestions from the peanut gallery of ways I can make my garage paradise.
1) Lift. I know it's been discussed before, but "lift" is such a generic word that a search of the forum is a little futile. I've had a couple friends recommend a local place called Gregg Smith Equipment, which sells a variety of two-posters and has them out in their showroom. I was in there a couple weeks ago and they seem very knowledgeable and the prices are quite low. http://www.gregsmithequipment.com/ Does anyone have any input into the quality of lifts they sell? My brother-in-law's good friend, who does a lot of work on cars and trucks, gave a good review. My top concern is safety. The cars I'll be working on are obviously the Benzes and my Jeep. The biggest thing that would go on it would be my brother in law's GMC Sienna. Comments? Suggestions?
2) Floor treatment. I have a lot of floor ... which makes floor treatment a massive investment. The floor is new concrete, very flat and clean. My cars leak, I spill stuff, I drop stuff. Should I bother with a treatment? Or would cheap treatment be worse than no treatment? I've even thought about having it professionally epoxied, but I think that would be outrageously expensive.
3) Shelving. Anyone know of a good place to get some sturdy shelves, new or used? I was going to go to Lowe's, but I'm not terribly impressed with the quality or prices. I've been scouring craigslist for used shelves, but mostly so far just seen IKEA bookshelves.

Those are my early and biggest questions. I could spend a fortune on this place ... I mean, there's just endless things I could do.