One of the locals here has a RigBlaster for sale for $70. The price sounds okay but I question if it can be used with a Mac G4 (AGP) and a TS-570D(G). I called the company that makes the RigBlaster about a year ago and they said no way with Mac and did not even want to sell me a unit. Anybody used a RigBlaster with a Mac? Dick, AA5VU