Ok,
So here is a bunch of stuff I am working on -
LED aquarium lighting,
-Arduino controlled,
-Arduino Real Time clock,
-Xbee wireless control,
DIY aquarium chiller (marine/reef compatible).
Auto top-off system for aquarium
Home theater PC media server.
Wireless Home control.
So lets get started. I will try to give detailed instructions and parts lists as well as suppliers for anyone wishing to copy/improve on my designs.