Paid Character Transfer

Q u o t e:
I'm running the 10 day trial atm, but am looking into picking up the full version. If I use this feature can I transfer the character from one account to another when I go to buy a second full game + expansions?

By the sound of this post it seems as though you have a second account you wish to transfer characters between. Before continuing on the account you are posting from you may wish to consider the Recruit-A-Friend program. If you have not heard about it, take a look at the Recruit-A-Friend FAQ page for more information. Some of the key components of this program are triple XP and level granting, as well as the opportunity to redeem the X-53 Touring Rocket Mount (when the requirements are met of course).

Recruit-A-Friend FAQ
http://us.blizzard.com/support/article/RAFFAQ

As for transferring between the accounts, you should review the Paid Character Transfer FAQ as well as the transfer restrictions involving Battle.net accounts before proceeding further.

Paid Character Transfer FAQ
http://us.blizzard.com/support/article/PCTFAQ

Paid Character Transfer Restrictions for Battle.net Accounts
http://us.blizzard.com/support/article/26163

If you have further questions about these services, you may update the thread if you would like.