Help with iPhone and different Mac Computer

Hi all. I have the Verizon iPhone with an iMac and Macbook. When I first purchased the iPhone (out of town) I had my macbook with me, so when I activated it etc I synced it with my Macbook. Now My iPad, daughters iPod and wifes iPhone are synced to the iMac, there are apps that were purchased on there devices that I would like on mine. Is there a way to add my iPhone (Jailbroken) to the iMac instead of the macbook without losing everything? Basically switching computers without losing all the data, music etc because it is jailbroken? Thanks a lot