Come As You Are
IDPA IMO is a great sport and easily accessible. As stated earlier in this thread, shoot what you have. IDPA is a come as you are party. Shoot what you have; see what the other guys and gals are shooting. Hone your skills. Later if you want to upgrade, go for it.
NRA Life Member
"An Ye Harm None, Do What Ye Will"
It's a free country; in a free country, freedom is for more than just those that conform to the accepted.