Where should I sell my tennis racquets, shoes and apparel on line?

I run www.savegear.com, which provides hundreds of Squash, racquetball and tennis racquets, shoes and apparel. Carries brand products from Head, Volkl, Prince, Babolat, Dunlop and Wilson. How can I marketing for them on line? Besides eBay, where can I atrrak more buyers and sell them? Where can I find people who is willing to [...]

Can I use my racquetball shoes for tennis, or should I buy some actual tennis shoes?

What kind of racquetball racquet should I buy?

I am an intermediate racquetball player who is looking to buy a couple of nice raquets. What reccomendations do you have for me? I have hear that e-force makes a nice racquet. There are just so many to choose from. I dont know where to begin.