I bought a Sony cybershot last year to take baby photos.
Its now been well + truly superseeded but I still Love it. I think its a 3MP which is more than enough for what we want.
It takes VGA video for as long as the memory stick will hold, which is cool, as others I was looking at only took a max of 30 secs at a time.
It has its own rechargable sony battery which tells me how much time is remaining charge wise.
Dont focus just on pixels+zoom numbers.
Take into account batteries+memory cost then go to the stores and have a play around.