If you're looking to uninstall system apps, I recommend Root Uninstaller. If you are looking to move apps to your SDcard, I recommend Link2SD. Using App2SD only allows you to move certain apps to your sdcard -- others that are set internally to not be allowed to move to sdcard will not move. With Link2SD, you create an ext partition on your sdcard, and dynamically link all your apps (system, tagged not-to-move, etc...) to your created ext partition on your SDcard.
Google Link2SD and read up on how it works to better understand it before installing to make sure its right for you.
Good Luck!