If you were waiting for the right opportunity/excuse the buy the Playstation Eye, now is your chance.  Originally a steep but reasonable $70 with the Eye of Judgment game, it is available now from Amazon for a paltry $46.92.

That includes the game.  Even if the game is a little gimmicky, the camera is superior to any webcam device I have ever used before.  Unfortunately it is not Windows compatible, no surprise there, but you get a much higher image quality than the 360 camera or the EyeToy before it.  I have yet to test this particular function myself but from what I hear on the internets you can activate the camera using Remote Play.  So theoretically you can watch your home through your PSP and wherever you have internet access.

Oh and this camera has a built in mic with noise reduction and an auto-focus neither of which the XBox 360 Vision can do.  This is only available until March 13th so act fast.