Be careful, there are a lot of individuals out there trying to scam you in order to get your money due to the SC2 craze.
If you are making a deal to buy anything, make sure you save all logs and contact info for that person incase you do get scammed.
Please post here of users on this site, with as much information about that person, that have scammed you in any ways.
This way people can check this topic before going into deals with other members of the site.
If you have any tips for people in regards to PayPal or other online transactions please post them here also.
Remember to review Paypal's dispute claim, as that is usually the main resource for purchasing online things.