hi, so its my first time doing any sort of transaction in craigslist. I found this guys offer, which said he was looking to trade or sell his Samsung Captivate(Samsung Galaxy S) he said he was looking to buy a n900 or trade for it or sell it just for 300 dollars. The info did not say much and there wasnt a real picture of it.The guy lives about 15 mins from me and I sad we could meet in a public place such as the mall. Can you guys give me some tips etc thanks