CHEAP AND TRUSTWORTHY VENDOR ALERT !!!
<$15 Arduino Uno, and you don't have to get it from Hong Kong!
Just wanted to post a link for everyone. This vendor, NooElec, is very reputable. They are an importer in Canada. Low shipping fees. Responsive customer service. Email response within an hour or so. English-speaking. I and some of the W5BIT ham members have bought from them before. Their generic Chinese stuff is quality controlled, and when they miss a bad one, they will make it right.
Just thought I'd share. I bought some more Arduino stuff this weekend and I thought I'd go the dirt-cheap Chinese route on eBay/Amazon, but ultimately, after a LOT of shopping around, most stuff I bought from NooElec. Almost as cheap, but MUCH more confident buying from them. AND they ship WAY faster than from China! :-)