Yeah I've heard good things about the Nikon DSLR series. I think for Audio plug ins, Blue Microphones do a mint standalone (Yeti Series - with instant feedback, audio jack and USB input). It's about 90 quid, so not TOO expensive if you want a proper sound.
I've wanted to get a proper Nikon for a while, but the cost is a little prohibitive (especially as I've just got a mac for editing... #FirstWorldProblems!).