Combining iTunes Accounts

[mtfield]

I had an iTunes account which i used to buy a substantial amount of media, then i got a new one once i got a gmail account and I then signed up for dot mac and began to use the new name for my purchases... I now have realized that my iphone can only accept 5 different accounts on it for media. well I have me X3, my brother, my father, and my girlfriend so my iphone won't let me copy some of the things anymore... is there a way that i can consolidate all the account purchases on to the newest account so that i don't have to waste my authorized spots?? thanks!