I've used IDN, and they've always seemed fine to me. Never had any issues.
Bear in mind that their are 2 different types of 'compatibles' - 'remanufactured' models, which take OEM empties, and refill and reuse them (and replace some parts too), and 'compatibles', which are designed to be ever so slightly different than OEM models to get round any patents etc...
The latter are usually much cheaper than the prior. Also, take into account that their are different qualities of toner.
When buying non-original consumables, ensure that the seller provides a warranty for both the consumable and your machine, should their consumable damage it.
Been using IJT for past 4 years no problems - no sales calls just the odd email. V cheap for compatibles-V expensive for originals and quick delivery but costs £6 for each order. Over the past year though I've found that the quality of the print outs has seriously declined along with the printer telling me the cartridge isn't a genuine one a lot of the time (we have HP 1320, 2420, 2015, 2055, 3005) so much so I've been buying HP branded from Wheatley Dyson which has free delivery and v good prices for branded HP toner.
I'll throw UK Laser Supplies into the mix. Used them at my previous school, converted the one I'm at now to them and the bursar here has got all the feeder primaries using them too. NBD delivery, remanufactured, free serviceing on printer etc.. Very good all round..
Edit to add - Forgot to say they do collections of the dead/empties too.. Contact details available on request..
Last edited by Thesweeney; 30th March 2011 at 04:19 PM.