I don't use the Arduino but I am into electronics and micro controllers. I prefer the Parallax Propeller. I'm currently in the middle of a few projects. The biggest one is my Coke machine. I'm adding hardware to it to keep my beer from the kids. When it'd done it will have a RFID reader on it and I'll have it connected to a web server so I can kick beers out from my iphone. http://www.savagecircuits.com/forums/showthread.php?1241-Soda-Machine-Project I hang out on another forum for electronic geeks. I have a few projects over there as well under the same name as I use here. Feel free to join and ask any questions you have or show off projects. Savage Circuits