I hope you don't mind the spam, but I built a shield for handling power LEDs. It makes for very easy LED projects and helps prevent LED and Arduino destruction . 
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1258412419/all#all
I hope you don't mind the spam, but I built a shield for handling power LEDs. It makes for very easy LED projects and helps prevent LED and Arduino destruction .
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1258412419/all#all