with the cheaper hp's check that you can use the more econimical ink as well. The number 26 black cartridge is about £16 for 10ml and the Number 56 black about £20 for 19ml i think. These are the cartridges the 'all in one's' use but the the cheap ones use the more expensive ink i think and may not allow you to use teh better 56 cartridge. Other than that think the HP's are good.