I recently bought a used HP1606dn black and white laserjet. It works really well, and is very quick. But I'll be needing to buy a 3rd party toner cartridge and it's been hard to find recommendations that name a specific brand. Does anyone have a generic toner cartridge brand they'd like to recommend? The HP cartridge I use is 78A, but I just want to find a company that makes good quality toner cartridges. I think most of them will carry the 78A version.