Just in case there is anyone out there who doesn't believe digital surpassed 35mm film quality some time ago, take a look at this clip from Channel 5's The Gadget Show where they compare truly enormous prints from a 12MP D700 and 35mm film-based F5.
Hopefully this makes it clear why we already have quite enough pixels in our cameras. The latest breed of 20MP+ DSLRs have essentially relegated all film, except perhaps for 5"x4" view cameras, to the dustbin.
So, the next time you are worrying about which camera to buy, don't obsess over megapixels and other more sbscure aspects of image quality. Get the one that feels right in your hands and works with the lenses you want to use. Then just get out there and shoot.
Thanks to The Online Photographer for the link.