Electronics help..

I have managed to put together a simple impact/pressure sensor, but now I need to make a circuit board that has a row of LEDs (say 10) that default to on. When a sensor is tripped, it will turn off an LED. If two minutes go by without a sensor being tripped an LED turns on again. The board will need to monitor input from as many as 12 sensors.

I know next to nothing about to electronics and was planning on putting this thing together with one of those white training circuit boards you can get at Radio Shack.

Anybody able to help?

Radio shack "sometimes" has books for beginners, but your best bet is to either hunt online for books or hit up a place like Frys.  to narrow your search look for timers(like the LM555 types) and maybe a few on transistor logic.  I take it you making something to let you know who's sneaking up on you with out them knowing?