As 9x45 says, before you spend any big money on new guns, go to a match and see what is going on. Give it a try. A local club will probably let you shoot with anything you have; a Makarov and a Tracker don't fit the categories, but you are there for the experience, not to win. You will need gun(s), ammo, a strong side holster, 3 magazines or 2 speedloaders minimum, a carrier for them, a concealment garment, eye and ear protection.
We kicked this around on Glock Talk the other day. See:
http://glocktalk.com/showthread.php?s=&threadid=75971
http://glocktalk.com/showthread.php?s=&threadid=75998