I know this is not for everyone but a friend gave me one of these printers that just needed cartridges and this is the best I could find...
This economical No. 2 Colour and No. 3 Black Ink Cartridge Pack is designed to be used with Lexmark Z1380 & Z1480 Inkjet printers and X2580, X3580, and X4580 All-in-Ones.
Delivered next day too.
Currys have the same pack for £42.25 +£5.95 postage and PC World £42.99 +£4.84 postage