I am using bitcoind and have been playing around.

Recently I used the sendtoaddress command to send 0.50btc without realizing the implications of this command versus sendfrom. Now when I list my accounts I see the following:

$ bitcoind listaccounts
{
    "" : -0.60010000,
    "w1" : 0.74584297,
    "w2" : 0.00022000,
    "w3" : 0.00000000
}

So at this point my main/default wallet has -0.60010000 and my w1 wallet shows 0.74584297.

I can list the default wallet address using:

$ bitcoind getaddressesbyaccount "" 

However, is it possible to transfer funds locally to the default wallet or should I just use a explicit sendfrom with w2's address?

Is there a way to move 0.74584297 to the default wallet without having to send over the network and incur a fee?

Thanks!