I haven't heard of regions in a very long time but I would try video lan client http://www.videolan.org/index.html if you have an RPC1 drive it will work right away, if not then well you might have to find a firmware hack for the drive.
I don't see anything illegal about it. I own plenty of legally bought dvd's from europe that I watch in the US. Heck even bang and olufsen unlocks your dvd player if you ask for it.
Sorry but I bought my media and I have the right to watch it. Don't care about artificial locks on regions. Because oh someone decided that they want to time the releases so that you can't buy a US dvd before it is released in the EU.