I'm building a flashing LED sign for a hot dog stand vendor. But I'm kinda stumped on how to wire the whole thing up. Is there any good sites on the web to help me figure out the best way to write up a schemtic and wire it properly. Basiclly the sign is designed to have a outer ring that flashes, the inner part to read hot dogs while flashing at a different rate then the outer ring, and a price under the words hot dogs flashing at yet another rate (I was thinking of maybe using 7 segment displays for the price). My plan is to run the whole deal with a basic stamp from parallex. What would be the best way to build this and make it run smoothly?