PhoneView is a desktop companion that fills in the holes left by iTunes for any iPhone user on the Mac (sorry Microsoft faithful). Some of PhoneView's features are as follows:
We often see folks in TiPb's forums looking for more syncing functionality than what iTunes provides. Could this be for you? PhoneView is available to demo for free and $19.95 to purchase a license. Be sure to check out this video for a quick tour of PhoneView's features and functionality.