You want a digital SLR, so you can have removable/replacable lenses.
All of the camera systems I know of, have a switch to turn off the auto-focus function. It will then be manual focus.
Have you looked at any of the DSLR's, and checked out their prices?
What is your budget?
There are a few threads in the "Photography" catagory, that discuss the same question, asked in the last few weeks (must be Christmas).:jumping: