Sorry you guys are having problems.
Sounds like PayPal have the money and the errors occurred before the money was sent to Hobbyking for you at least Dan.
Personally I'm a new Hobbyking customer. I've had the odd problem - wrong item shipped in one order - it did get sorted though - just slowly !
I did set up an account right at the start - and it logs / tracks all my orders. I'm on my 19th order and I would highly reccomendations them for items you simply can't buy elsewhere.
I buy all my car gear from MB models - but the quadcopter gear I've bought is not available locally - if at all.
I've never had an error whilst ordering online - but I use a Mac with Safari - id never shop online on a windows PC - or worse still use IE !
Hope you all get sorted - but I for one think Hobbyking are a good thing as long as you know what you are ordering - also the Hong Kong orders come though reasonably quickly - around 3 to 4 weeks for me. If you want something in a rush - look elsewhere