My organization is looking at a couple of machines (Ricoh Aficio MP C6000/7500 and the Toshiba e-studio 4500c/5500c). Could I get some opinions from anyone that has used any of these machines? As my history has been more with the Xerox machines, I am not quite sure of the real life quality (machine wise and image wise) of these two machines. Thanks for any advice you can give.