Marc, yup.

Since I'm down close to the end of my pre-made, ziplocked fish food, I've been taking the chunk out and just hanging it in the water and letting the fish go nuts. It's fun to feed them by hand. My normal method is to cut off a 3/4-1 inch square, dissolve it with tank water in a turkey baster, and dispense in front of a power head.
You can see the chunk of food right in that video, and right in the middle of my build I discuss my food recipe along with many pictures.
I would recommend Sony or Cannon. They are flat out the best available right now. MiniDV and HD are usually the best formats. Stay away from DVD ones as they are the new dinosaur of cams and are being phased out. Comparatively the quality is not there.
Hard drive ones are the way to go, but they are pricey. The main reason I didn't get a hard drive version had to do with Mac compatibility(kind of a moot point considering the software I now use).
Mine was $600 and the software was $200.
One of the nice features about mine is the 8 GB of internal memory. I have yet to use or need a memory stick. Just keep in mind if you need one of Sony's you're looking at another $50. +
Another factor to consider is what you'll be using it for. If your answer is the reef, then you'll NEVER surpass the internal memory. If you want to record a 4 hour opera in full res HD you're going to need a large stick or Hard Drive. Also keep in mind your computer. How up to date is it? HD files ARE massive. Nope, not large like you think. MASSIVE. The first few raw files from our honeymoon(the longest was maybe 18 minutes) took up 60GB on my hard drive. :eek1:
I'm currently uploading a longer video, a full tank shot video if you will, and a short video of my lil softie garden. Compare the softie garden one to the first video. In this one I think you'll notice the difference.
Back lighting is a major factor as well. The room the tank is in is actually lit via a single ceiling mounted CFL. The feeding video looks a bit dim because of this. It's also massively color corrected via the cameras superb white balance. Comparatively, the Nikon D40 I had tried out couldn't adjust the white balance via a white background- it was just out of it's range. The sony camcorder does this like a champ. It takes decent still pics too. One of the things I noted while I played around with it in store was the exceptional, compared with more expensive HD camcorders, stills it took. Take a look at the last two pages of pics I posted. They're all raw from the camcorder. They're not Nikon D40, but they're better than my point and shoot by far. The only complaint I've received from fellow reefers is how there is seemingly not enough blue/actinic in the tank. That is how much the camera color corrects to what you're actually seeing in person.