The RZ has a tilt shift adapter. I think the RB had one too. Other than that the Rollei sl66 has a wee bit of tilt.

http://www.bhphotovideo.com/bnh/cont...ughType=search

Other than that camera, I would probably just go for a baby Crown graphic.

These people make really neat rail cameras, but you mentioned you were not interested in those.

http://www.shelro.com/products%20infor/1_1.htm