The Epson R series are good. I have an Epson R220, 6 individual cartridges. Compatibles from Choice Stationery click here
Can get compatible ink from other suppliers cheaper but I prefer Choice.
I have now (not long ago) fitted a CIS (Continuous Ink System) to this printer. Has six 100ml ink bottles, equivalent to 7 cartridge changes for each colour. Top up 100ml bottles cost £11.95 for all six. click here