Since I'm actually doing this, I might as well start my own thread and show what I've done. So far, it's been way easier than I thought.

Around July I bought a 32 bottle wine cooler on eBay - basic no name brand, but there were a few models and I ended up spending a few extra bucks to get a cool trim I liked on the front, rather than just the basic black or gray square. Here are stock photos - they currently sell on Amazon under "AKDY" 32 BTL

I figured it would be cheaper than buying a newair/whynter, and it was larger. It also had more height for shelving, and I'm an organizational freak, so 7 drawers is massively appealing.

It's thermoelectric, and has two interior fans for moving air built in, so I'm not too concerned about adding anything. The built in thermostat isn't exactly "on point" either, but that's okay with me, since I rarely turn it on anyway.