I have myself used HP Laser Jet Printer, and true to its name its a "Pro", when printing is concerned. It can print almost 18-19 pages per minute, and a single cartridge can print about 3000 pages according to my experience.
Absolutely easy to install and use, available with the installation CD, along with the instructions to make the printer ready to use. The cartridge is reusable up to 3-4 times and then you can opt for a new cartridge, for better printing experience. Till now I have noticed no breakdown in the printer and its working absolutely fine. If at all there is any, HP promises doorstep delivery of services, that saves us from any additional worry.