DX vs. FX
I have a DX Nikon and get to use an FX Nikon. the quality on the FX is better, however...the technology in any DSLR these days is pretty darn great. you really can't go wrong with a DX. I especially like the 1.5 factor when I throw on the 70-300mm lens and get an effective zoom of closer to 450mm! that's pretty cool.
Honestly, I think the sensors will get bigger, better and cheaper....and someday the DLSRs will, in essence be medium format for the price we're paying now.
That being said...I'm toying around with picking up a used Nikon film camera, just to test myself. :-) is film now considered "old-school"???? say it ain't so!