I personaly just go around the rocks in some of my tanks. In my 29 gallon, I have the spray bar return verticle behind a large rock formation to provide circulation and keep anything from building up in them.
I have seen several people make whats called an UnderGravelJet (UGJ) system in there tanks. This provides current from the bottom to the top of the tank and keeps anything from settleling on the bottom, keeping it in the water untill the filter can suck it up.
I belive someone on this board recently made one of these and had pictures up of it.
Oh, and the only stupid question is the one not asked! We were all beginers once, and been where you are now. We are here to share information, so don't be afraid to ask.