Can't wait to see this. I do most of the sales myself so I just keep what's left over after everyone gets paid, but I am looking for a full time person. I went to a class at CES by Media Systems where they recommended a sliding scale. The basis was a percentage of gross but the kicker was that it went up for higher priced systems, ie 1% for a 50k job, 2% for 100k or more, and 3% for 500k or more. The idea is to incentivise sales people to push the higher end.