Marketing a sports site?

Hello! I am looking for inexpensive ways to market my sports memorabilia site. I have been posting on Craig's list and joined some yahoo sports groups. I am also working on a press release and getting something in my local paper. I also checked out the Guerrilla Marketing book. I am just looking for alternative inexpensive means since I can't afford yellow page ads, classifieds or that sort of thing. I am not listed in all of the search engines yet either because I just submitted my site. Thanks for any advice!!!

here's my site

http://www.getprosports.com