We use an elderly HP 4050DTN at home for 99% of our printing (although even then it isn't used particularly heavily for the most part). It's been superb, it was 2nd hand (£20 on ebay with toner) and had done 180,000 prints but is still going strong! The duplex drive is very useful too, cuts down on paper useage.
Before that though we had a HP Laserjet 4000TN and that was very good- it only died after the cat decided to use it as a litter tray. And even before than we had a Lasterjet 4 or something- anyway the point is that HP seem to make very good laser printers from what I have experienced, so they might be good to look at.
We used to have an old Konica (I think it was)- and you practically had to push the paper through yourself, dreadful thing, was forever jamming. I'm afraid I can't give you any help on any recent models of laser printer though.