Quote Originally Posted by juan
You need to tell us more about what you want to do. What formats specifically. 35-mm enlargements require much different equipment than 8x10 contact prints. What kind of budget do you have? New or used?

Artistic ability is in you, not the equipement. Remember that Ansel Adams apparently used every camera and enlarger ever made (only a slight exaggeration) while Edward Weston used an old 8x10, an old lens, and contact printed with a light bulb. Both produced exceptional work.
I shoot with 35mm and 6x6. Budget is limited to second-hand equipment but on the better end scale.