Actually, I just tried withdrawing 100 BTC and although my balance decreased by 100 BTC in the heading of the Mt. Gox website, nothing has happened in my Bitcoin client at ALL. No grayed out transaction notifications, and certainly no confirmations. I want my 100 BTC really bad right now
Edit: My 100 BTC just showed up, w00000000t!!!
I'll update when I get 6 confirmations.
Forgot to update, they all confirmed just fine, and I withdrew all my Mt. Gox holdings successfully. Now I just have to choose which exchange to purchase more BTC with...