Just hooked up my iBook 500mhz g3 with 640mb of ram and ran all my SSCs 7- through an Etherdongle. About 700 nodes. 2100 RGB channels. No problems. My 132 channels of DMX are not hooked up but I don't think it would have been a problem.
This computer has been in a shelf in my closet for at least two years.
Woohoo! I now have a show computer that isn't my sequencing computer.
Ryan