club : send an IM to pizzaguy ( Mark lives in Cumming )
sluggish : if nothing is really wrong, there are a few options to increase HP/torque, in this order :
1. single CAI from needswings.com
2. 74mm throttle body upgrade from a 55 series MB
3. Eurocharged tune.
4. buy a house on a high mountain up in north Georgia and enjoy the acceleration when leaving each day.

I can understand why you are looking for more zip, if I still lived in Atlanta, I'd be looking too.