Originally posted by: jpeyton
You're going to be shooting tens of thousands of photos over the lifetime of the camera. It's essential you pick one that feels good in your hands. Look beyond the megapixel myth and lens systems (they are essentially the same).
I'd suggest that the body is less important than the lenses really. Bodies don't last all that long in the digital age before a real upgrade comes along that makes moving to a new one worthwhile (2-4 years, perhaps). Yes, you can still get good pictures from a professional 4MP camera, but there are real benefits to higher ISO shooting, higher megapixels to enable cropping*, image stabilization systems, dust removal systems (ok, well, maybe not), weather sealing, etc., etc. What stays fairly constant is your stable of lenses.
The 70-210mm f/4 that I mentioned above was built in 1987 or sometime thereabouts and is still a fantastic lens. How many people are using bodies built in 1987? I have a couple, but I won't shoot film so it's pointless. The lens is likely to stay with me for a long time to come though, and I'm on my second body with it already.
I wholeheartedly agree that the way a camera feels in your hands is very important, but I'd also add that every camera feels the same mounted on a tripod.
*NOT disputing the megapixel myth as you call it. Higher is not always better, but I've noticed a benefit going from 6MP to 10MP. It's not enough to justify switching cameras in and of itself, but it is nice to know I have more leeway in cropping if I need it.