Hi there, i had the same issue a few years ago. Ordered a PC, paid for it and never received it! The main thing i would change is, i would send my money trough money gram, i would use PAYPAL only! As you can open the case at least if the item didn't arrive.
Also guys, have you ever considered to buy from www.taobao.com? I have started my own company buying from there and now helping others with all information about the taobao. I definitely can assure that taobao never let me down, obviously sellers made a few mistakes in a past, but they resolved them without me waiting even a day! So, i do recommend to use it for sure and it very cheap. The agent i used is luxdistribution.co.uk, you can try it - very reliable and shipping is not expensive. I just regret why i didn't buy from taobao earlier, so much cheaper!