Best weapon for Concealed Carry advise

Although I live in an Open Carry State I feel uncomfortable showing the whole world I have a weapon on me. Right now I have a 9MM Ruger P89 that feels to cumbersome to conceal. Besides I've never really liked it that well. I'm not well versed in handguns at all and plan to attend local classes here to gain the knowledge I need. What I'm asking is for suggestions for a good Pistol to carry that doesn't cost the National Debt to buy.