I would choose Amazon (where I shop for nearly everything, including my favorite gluten free cookies) or ezydvd.com.au (Since I first found them in 2001, I have become addicted to being able to see (owning is a ++) zone 4 movies and they can be impossible to get here.)
Would I share? The pragmatic question is - what did I do to earn it, or was it serendipity? The real answer (as anyone who has known me for any length of time can tell you) is that I buy presents. All the time - it's what I do.
Right now, since Jim is still out of work, I would probably opt for Amazon, and do my Yule shopping.