Hello. We're looking for an HP replacement for the 4100 laser jets. HP printer support recommends the M602 series. Is anyone using more than a couple of these? I'd like to know how real life compares to the specs. The M601 seems, from the specs, to be a reasonable unit at 2/3s the price. Anyone using the 601 and the M602? Another option would be LJ Pro 400s at ~$250 and treat them as two year products. Opinions sought. Thanks. Don Bosman Information Technologist MSU Libraries 366 W. Circle Drive - Rm.W441 East Lansing, MI 48824-1048 517-884-0873