Hi Frank

I'd go with a Nikon FM, FM2 or FM2n with the 50-135 Nikkor but it wouldn't be the lightest choice.

The Rollei 35 that Helen mentioned also seems like a good idea. On that subject try and get yourself a copy of AP from 23rd October 2004 which had an excellent article on the "35" range by Ivor Matanle

Cheers, Julian