Honest mistake, I thought Bitcoin-Qt would ask if I wanted to add the fee which it did not. What are the chances this transaction will make it through? Is there anyway I can cancel this transaction or do I have to just wait it out and see? It was sent from Bitcoin-Qt v0.8.2-beta
Bitcoin-Qt will insist you add a fee if (and only if) it's required to get confirmed ever - so it should confirm eventually. If you want to always include a fee for a faster confirmation, go into Settings. Unfortunately, while Bitcoin allows you to add a fee later, Bitcoin-Qt does not support this.