Here are a few steps...
1.Click my coins and become a paying member to support the BOI
2.Check out the person on the BOI
3. Document every exchange do it all through emails
4. Pay with your credit card through pay pal (you are double protected that way)
5. In the notes section of paypal detail the transaction ex. "paid $xxx.xx in full for one __________. To be shipped to such and such adress on such and such date."
6. Cross your fingers
Good Luck! It kinda sucks that in this day and age we have to be so paranoid.