Thanks for all those comments. I'm going to bid for a Mamiya C of some description. There are currently C330's, a C220 and a C3 on at the mo, along with several lenses.
Blanksy, I did consider a rangefinder but that would also mean a new enlarger as my Opemus 6 only goes up to 6x6. So i'm going to go the TLR route for now i think.