The faster the speed of the printer and the higher the resolution, the better the printer. You should try and get a printer with a resolution of at least 600 dpi. Make sure the printer can handle envelopes. You can ask to have all of the name brand computer parts put into your computer, but the outside case will not have a brand name. This way tends to be a bit cheaper, just make sure the company will be there in the future when you need to use your warranty and has been around for at least 15 years.
Most computers are equivalent.
Gateways have been known for the superior customer service. The most important thing you have to consider when buying a computer is the warranty and service agreement. A warranty should be at least 3 years. Make sure you know who you are purchasing from to ensure that the business will still be around a few years from now when you need service.