Thanks for the tips. I looked at my local Craigslist and saw that a similar model was selling for around my price; of course, bitcoin prices have fluctuated like crazy since then. I'll price it conservatively as a buffer if prices rise.

You're right about tracking, but doesn't using Tor to access wallets mitigate much of it? I know Bitcoin transfers from address to address can be tracked, but couldn't I also transfer it to some anonymous currency (like Monero) and transfer that currency, cloaked, to my own address?

Also (and this is just scientific), how can you use different receiving addresses with the same wallet? Shouldn't that make it hard /impossible to verify transactions?