Hi Robritt. It's funny you mention baseball equipment becuase that's how I started out. My son plays college baseball so of course that's what I am interested in.
Anyway..I would start out with the small companies like Akadema. They are located in New Jersey. They makes bats, gloves, batting gloves, the whole 9 yards. They will send you their CD catalog, price sheets & allow you to use their pictures etc. If you have a resellers license that's a plus. There are many small basbeall companies out there that are happy & willing to work with you but the large companies use manufacturer's reps & it's kind of tough getting in with them unless you have a storefront & thousands of dollars to spend in inventory.
So, just do your research & GO PHILLIES!!!