3030 Zoom . You should have a PostScript laser printer capable of handling oversize paper for proofing purposes. If you can find a used Hewlett Packard 4MV , buy it. HP doesn't make it anymore, so you'll have to root around the Net to find one, but a more robust and serviceable machine can't be found. Don' t bother getting a color laser printer.
Image quality is nowhere near as impressive as on ink-jets.
A color laser is okay for basic proofing, but for presentations to clients, you want glossy stock and stochastic dots, not halftone. Ink-jets are also glacially slow, so don't invest too much here. When you need a beautiful glossy proof, go to a service bureau and bill the client. Digital video is the next revolution. Apple is pointing much of its hardware in this direction, and as designers, we must adapt or run the risk of following typographers into oblivion.