In reply to FesteringSore:
Laser used to be better if you were printing large amounts, but in my experience inkjet has caught up considerably to laser for that, although it is still a bit slower. I use a 'HP Officejet Pro 8500' and it seems very cheap to run, I buy the 'XL' cartridges online and so they're usually about £15 each. The printer was about £150 although that was a while a go so it'll be a different model now I guess.