You can buy BitCoins from

LocalBitcoins.com

The price per bitcoins varies depending on the risk of the transaction, but you can buy them through bank transfers, paypal, moneygram, or western union as well as several other ways.

The sellers each have ratings and you can see who the most trusted are and that they are verified sellers so the risk of buying goes down.

The trade is also put into an escrow until the transaction is complete so even more safety for both parties.

After you get them you can transfer them into any anonymous wallet you prefer and even tumble them for even more anonymity.

You can also buy BitCoins from CoinBase.com and we have a thread on that here

How many are using BitCoin? (Easy Setup Guide)

To see how much to send check here

BitCoin Exchange Rate! (How Much to Send)

More info on BitCoin

Easy Bitcoin Security

Will add more and more to this thread as we progress.

Anyone has anything to add please do so.