We'll start with the personal or home office user. For people with fairly light printing needs, consider the Brother HL-2035. This printer is only available in Europe at this time, and online prices fall in the 50 - 60 £ range. It is the only printer in this group that I would consider at all disposable, as it is rated for a total of 12,000 copies over its lifetime. However, for someone with a need to print 200 – 400 pages a month, tops, it can be a real bargain. The printer speed is about 17 ppm, and cost per page is about 2.3 p.
It will hold 250 sheets of paper, and connects to your computer via USB - a cord is not included. It is solidly built, takes paper up to A4, prints envelopes, and has a print resolution of 2400 x 600 dpi.
For a home office, this seems an ideal machine. User reviews were uniformly positive. I wish this model were available in the US, because I could use a printer like this at home myself.
Extended review of the Brother HL-2035