I dont know if this has been posted before but theres this site where you enter your address and they show you an aerial picture of your house. I usually go to it when I'm bored, so go check it out. Lol! It prolly only works with US addresses.
http://terraserver.microsoft.com/
Chris(soulfire) found this one, enter your address on top, enter, then click on satellite.
http://maps.google.com/