MtGox might be intentionally holding your $$ so they can put the $$ into some kind of interest paying investment.
I tried to withdraw $400, and it's been 3 days. Then I ask what happened, they said I need to have my account verified.
Their own FAQ stated that WITHOUT verification, one can withdraw up to $1000 a day. So how is $400 > $1000?

I smell some sort of scam.
Guys... we already replied to this question again and again and again. Please make sure to read carefully what we post. We are still waiting for Dwolla to give us a "Green Light" and continue to work with them. Since we do not have any reply from them after sending them all the necessary documentation we want to play safe. They can at anytime close or account and freeze any funds on it. To avoid this problem we are carefully monitoring the account and asked for people to be verified.