If all you are printing is CMYK inks on to a white or light colored fabric, no problems from a printing perspective. For the polyester and synthetic fabrics, you will want to use a polyester or light garment pretreat fluid before printing. The only challenge you might occur is when it comes curing the ink. Some of the ribbed fabrics don't handle the heat from a heat press as well as others. So you will just have to determine if that is the case depending on the fabrics you are using. You could also try curing the printed fabric through a forced air conveyor dryer or dryer box.