New user saying "hello."

Very happy with my FM3a. Are there many users of this system here? What do you like about yours in this age of [affordable] automatic SLRs? Do you ever wish it had a spot meter (or 100% VF, or mirror-lockup, or...) instead of the 60/40% meter?

I'm new to 35mm and have just 2 lenses: 50mm f/1.2 AI-S and 28-70mm f/2.8 ED IF AF-S. The AF-S lens has a nice feel to its focus ring, but I really prefer the way the 50mm focuses, so not sure if I will be buying any more AF-S (or even AF) lenses. I'm mostly into portrait photography at this point, and find myself lacking a 85mm or 105mm (or even 135mm) lens. What do you recommend? Should I get the 80-200mm f/2.8 AF-S (used only at this point) to go with my 28-70mm (for future expansion to AF body) or do you suggest something else?