Ksail101,
Cameras that feed directly to a computer are easy to find and inexpensive. One day I looked at Lowes or Home Depot when I was researching, and I could have hooked our entire exterior into our computer for about $500 - several cameras, cables and connectors. Nice part about this is that you have real time when someone comes to a door or window, plus you have a recording saved with date and time for evidence or review when you have been gone.