Thanks for the responses. Ever since the dwolla+mtgox link went down I've been searching for an alternative...
unless you're married to using mtgox, i would find another exchange. Many others (I use campbx but I'm not partial to them) still have dwolla, and did it properly (at least campbx did register as a money transmitter) so they won't get shut down. Other exchanges do accept wire transfers and other fast payment methods, but once again, ag a general rule of thumb, the faster the method, the more it's gonna cost you!