Steve -
We have two Vinotheque QT units (
http://www.vinotheque.com/). They are top quality but not inexpensive. Haier does ok (other than being made in China) for smaller bottle counts from what I understand.
One thing to watch out for is where you locate it. If your garage tends to get hot (San Jose!) you probably don't want to put the unit there. Most of them are good for about 30-deg temperature differential. In a hot garage you might not be able to maintain the desired temp and the compressor would likely be working its butt off in the summer.
Jim