Is there an easy way to buy bitcoins? I tried coinbase and it said it had hit the 24 hour rolling limit whatever that means. I then signed up for mtgox but al

Is there an easy way to buy bitcoins? I tried coinbase and it said it had hit the 24 hour rolling limit whatever that means. I then signed up for mtgox but all of the funding options look really onerous. Why can't I use ACH or a credit card?