I'll have to agree with Jeff on The FTb's. While they are angular, they're more then capable, and known for their resistance to heat or cold except for the battery of course. It would be hard to find a sharper shooter then one with a 50mm F1.4, and the rest of the Canon lineup has some stellar performers.
The Nikkormats for the prices they are going for are some underrated cameras and the non-Ai lenses can be great. Just depends on how much you want to carry.
I'm starting to explore the KISS system with a K1000 and screwmounts. Less is better.