Thanks for the reply CMiYC,
I was refering to this version:http://arduino.cc/en/Main/ArduinoBoardSerialSingleSided3
That's the only single sided one I've seen, but like I said I'm real new to this.
Integrating the LEDs sounds great! I'll only be building this specifically for this task, so that makes sense.
One issue is that the cable need to be able to be about 15-20 feet long from the computer to the ardunio (or 15-20 feet from ardunio to LEDs), so I know that makes the USB version not a good choice...