I ventured into printing on an Epson RX630 multifunction . Bought a Spyder2 Print to calibrate the printer/paper combination and Qimage to print. Very glad I began this way as when I got a 3800, the learning curve was small. I was not expecting anything great from the printer, but the results were surprisingly good, in fact better than from a store, though I could see fading after a year or less. If paper manufacturers supply canned profiles for your printer, so much the better, but I recall I got my Spyder2 on Ebay for really not much money.
If you are already softproofing, then it is just a matter of getting a profile for the paper/printer combination, and you may as well make use of it. Though if you get keen be warned you might need to get a second job to pay for the ink.
David