This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
It's been a few months since I have tried it, but I had a heck of a time getting Rails installed at first. I was trying to do it from work, behind a proxy server. I saw an article that said to set the "HTTP_PROXY" to the full url of the proxy server, but no luck. Ran the installer from home, and it worked like a charm.