Our experiences with Brother were... bad... for lack of adjectives that wouldn't violate the Flyertalk TOS. Brother seperates the toner from the drum so you don't have to replace the transfer drum with every cartridge. But... their drum is as expensive as the whole HP cartridge, and our Brother printers always complained they wanted a new drum after every 1.5 cartridges. ARGH
At home I'm still using my LaserJet 5P after 13 years with nothing but new toner cartridges. At work, since we gave up the brothers for a LaserJet 1200 and two color LaserJet 2605dn printers we haven't had any problems. Years ago Lexmark lasers used to be fine, but the shoddy quality on some of their inkjet units of late has scared me away from the brand. And don't even ask about our Xerox multifunction device experiences. We have had many good Canon office appliances, however ^