Olympus 35 SP. They're the higher-end siblings to the RD and RC. The lens is absolutely phenomenal, and they offer both spot, and centerweighted metering. The lens is a 7 element 42/1.7, and, in my opinion, blows the living hell out of those dinky little Canonets. There's also a program automation setting, and they weigh next to nothing.

As for your zone focusing concern, I just wrote "12.2ft" in sharpie on some tape and put it on the back of the camera. That's hyperfocal at 16, and nets you a very usable range of distances. And there is a distance scale on the lens, too.