I am planing on purchasing a Z2100 24" and was wondering how much ram (computer) is needed to run the printer effectively. I have a older computer (back-up) that I would like to dedicate to the printer. This computer has a 3200+ processor and only 512 ddr ram. I plan on bumping up the ram to at least 1gb, possibly 2gb. I know most are running 4gb, but could I get by with the current system?