Contax SLRs and their lenses are awesome. I have the RTS, RTSII and an RX. Many love their Aria but I handled it and it felt too cheap and was too small for me. Consider some of the others like the 139 or even aforementioned Yashicas. There was a nice 139 for sale on APUG recently. I got an FX-3 for very cheap and all my Zeiss C/Y lenses fit just fine. That said I also shoot Nikons (F2, F3 and FM2) and mostly older 60's and 70's manual focus glass. I use the Nikon glass mostly for more classic look of B&W and the Contax and Zeiss lenses for when I want a more contrasty B&W look and/or color. Both systems are terrific.