To make some recommendations we will need a little more info.
What about the cymbals don't you like? (ie are they too tinny or high pitched sounding or too dark or trash can lid sounding) What type of cymbals are you needing (hi hats, crash and ride) and what sizes are they?
What type of head is on the bass drum now? If you are looking for a deep thud with no ringing (referred to as "short sustain") you might try an
Evans EMAD or EMAD2 batter head. You might also try an
Aquarian Super-Kick series batter head.