My 05 has the 'sport' package... ok. How much difference will i feel if i get high quality after-market swaybars? (please no coilover\drop comments.)

Go to the suspension section and read the sticky about this.

after market sways will def tightened up the suspension...hear a lot of rant and ravings about hotchikins or stillen sways...both adjustable...

Adjustable sways will make your car corner flatter (less body roll) but if you
include adjustable end links and upper strut bar it gets even better. And this
doesn't effect your ride or tire wear which is a plus!
Gary