Hi,
A spy cam will need a digitizer to convert the analog signal. You can get USB digitizers that aren't much larger than about 4 regular thumb drives.
A WiFi IP cam will be easier, if your laptop has got the WiFi built in (most newer laptops do).
How easy/hard it will be to get into RoboRealm, I cannot say though, but I'm sure you can find some info about it, either on their site or via Google.