We'll, you can customize them to control what ever you want.
I shoot manual, and have the default controls, which has the front e-dial control the shutter speed and the rear e-dial controlling aperture.
In response to Jet, that's true, glass is where you want to spend the real money.
However, you need a body that works for you and feels great in your hands so that you will actually want to go shooting.
I for one wouldn't mind throwing down a little more to get a body I really want.
I've held a fair amount of cameras including D40, XTI, XSI, 30D, D70, plus extensive use with the D80 & many more. The K10D in my hands honestly feels in a league above those. I can't tell you how "right" this camera feels, it really is a pleasure to use.
So Irish, you really do have to hold the camera if you can before buying it, but I have no problem recommending Pentax's line up.
O also, unless you're going to be shooting above 300mm, Pentax has a great lens line up. Sure they don't have as many options as some, but I'd rather have quality glass then just out right quantity. Further more, if you like using primes, Pentax can't be beat.
Bob