Funnt really, I asked in the Arduino community for some help with making my own HID type interface for such a gizmo and I got nothing but demands for code that I didn't have and no help whatsoever.*thumbs up* for a nice instructable.*thumbs up* for a very nice instructable.
Your local guy will be buying from the same places as the Chinese seller, only his buying power is made by buying in bulk or if Chinese, via an old family friend or school friends or wherever he has people he knows in factories that make this stuff.So if you don't know what you are doing, buy local, get advice and be assured.If you know what you are doing, know what to buy and can wait up to a month then save yourself a load of $$$'s and buy international.
Giant 100mm LED
DIY 1000 watt wind turbine