Many of the cameras mentioned here are not very affordable. The Yashica T4 has unfortunately achieved 'cult' status with the accompanying price tag. The Ricoh GR series cameras are great but costly, there's one in the classifieds now. Rollei 35s and Contax T series are also costly.
Originally Posted by digic
The Mju II is probably the best bet, I use 800 speed film in mine to overcome the aperture issue blockend speaks of above.
Can I also suggest the Nikon AF6000 (Lite Touch)? It's got a 28/3.5 lens and can be had on ebay quite cheaply. The only issue with it is that it doesn't read 800 & 1600 film. So as long as you shoot only 100, 200 and 400 films you're fine.