Digital BW, The Print

I'll try to be as concise as possible, and I appreciate any help I 
can get. I am considering purchasing the Epson 3000. I don't have 
the money at the moment to buy a larger printer, and the 3000 will 
allow me to print up to 16 x 20. I once had a B&W dark room & I have 
a body of work that I processed and printed myself. I no longer have 
the dark room, but I have been selling 8 x 10 prints on eBay. I have 
had requests for larger prints. I have also had many requests for 
new work. That is why I am considering buying the 3000. Most of my 
work is B&W, but will be selling some color prints also. Quite a few 
of the originals were made from infra-red film and some from a 4 x 6 
format. My new work will be with the 4 x 6 camera for now as my 35mm 
finally gave up the ghost. Any suggestions or advice would be great, 
as I want to purchase the printer within the next few days. 
Thank you much in advance.
Vicki/DreamingStarseed