I had an HP Laserjet 5L before purchasing my 7100/80 PowerPC. Spoke with an HP tech person months ago and he said I could purchase the (interface?) and (software?) necessary from a third party company that charges about $100. Now I can't find the name of the company or the number. Tried HP, but can't get the info now. Can you help me find out how to use this printer with my Mac?