HP Toner (49X) for Laserjet 1320

Anyone experience of buying/using OEM cartridges for this printer?

There are quite a few suppliers selling different but apparently compatible cartridges. Which are reliable and won't screw the printer?

Alternatively a less expensive supplier of genuine HP cartridges?

I have found internet ink to be very reliable

http://www.internet-ink.co.uk/

Yes, the ink can be expensive. But if you buy it online you can get it cheaper. I get mine from FindMySupplies its actually HP's shop but at a lot lower prices in the store!