To transfer gold from accounts is quite simple. I've recently gotten into merchanting and all that merchanting is is a transfer of wealth from one player to another.
On the account you want to transfer money to, buy something overnight for a small percentage above the minimum. For example, you can buy 3 berserker rings for 1.69M, even though the min is 1.675M and the medium is 1.78M. Once your rings buy (1-8 hours) you sell them to the account you are transferring the money from for the medium + the highest wealth transfer the accounts have. Then, take the rings on the account you just sold them to and sell them in the GE for the minimum, or at a low price so they sell instantly. I suggest you don't sell them for less than you buy them for on the other account. Depending on how much of an item you can afford, you could easily transfer Mils a day.

