My husband is a filmmaker and works with video for a living, so shopping for a video monitor was... interesting. lol
The poor woman at Buy Buy Baby couldn't answer any of his questions about speed or rate or whatever, so she let us take every single type of camera out of the box (if it wasn't already on display) to test them. My husband felt that if none of the cameras lived up to their cost (only Spielberg makes money on filmmaking, we're saving our pennies here), he would just purchase a real camera and monitor set instead of those designed for the nursery. I know, it sounds crazy. lol
Turns out the Motorola® Digital Video Baby Monitor with 3.5 Inch Color LCD Screen is the best. It has the clearest image with the fastest recording speed so there is little to no delay in what the monitor shows. The night vision option is also clear and the extra features (sound, music, temperature) are just bonuses. For the price, this set is worth it. However - do NOT get the two camera set, even if you have twins or need two cameras. Buy two separate cameras instead. Apparently there are a lot of problems with the two camera set - the woman at Buy Buy Baby said they have been getting tons of returns because the cameras do not work the same as the one camera set. Not sure why.
For some people, the price for this one may seem like a little much, but it is totally worth it!