1) Fairly. I agree with the LP on most issues, but I think that their organization ranges from crappy to laughable. About fifteen years ago, a 14-year-old girl was a delegate at their national convention and ran for National Chair (IIRC) and only lost by like 23 votes. If they could someone effect SOME real political change while keeping to their principles, I'd certainly support them. I have voted LP in the past, including my epically-drunken 2004 vote for Michael Badnarik for President.
2) I am registered Independent in California. I was Independent in Pennsylvania from 18 until 25, when I re-registered Republican so I could vote for Ron Paul/against John McCain in the GOP primary.
3) Americans who more or less have the same philosophy that I do? Grover Cleveland, Milton Friedman, Barry Goldwater (except for defense), Ron Paul (except for abortion and immigration), Trey Parker, Penn and Teller, Clint Eastwood, Andrew Napolitano (except for abortion), John Stossel, Jeff Flake
4) I do believe in the concept of nation-states, although, in a perfect world, there would be no borders, no tariffs, and no wars.
5) I do not think that all decisions can always be made rationally. Believing that all decisions can be made rationally isn't a libertarian tenet, though, so I am kind of wondering about that question.
6) Congress - almost always messes things up; there are a couple of good people in there, but people who want to be in Congress are generally creepy and untrustworthy
Military - necessary; made up of many brave people; forced to do heinous things for bad reasons all the time
Political Parties - don't really care for modern political parties; I'd be down with the LP if they ever got their act together
Religious Institutions - I'm an agnostic humanist, raised Catholic; religion can be a positive influence in people's lives, but can also be a refuge for the small-minded; religious institutions often do great charity work, which I always prefer to government handouts
Civic Clubs - usually positive things; non-government-related civil society is one of the backbones of the nation; I may be sponsored for entrance into Freemasonry in the next few years
Marriage - I am for the privatization of marriage; civil unions for any two unattached adults of sound mind and free will; I plan on marriage and children in the future
Boy Scouts - gay
Girls Scouts - good cookies; sexy uniforms
OK, last two were jokes. They are good organizations and, as private entities, they should be able to exclude gay leaders, but they shouldn't be able to use government facilities if they do so.
7) No, not at all. I have read some of Rand's fiction and enjoyed it, but she was a terrible person to be around. Also, where's the fun in being a libertarian if someone else has already decided what you should read, watch, listen to, wear, etc.? I know some very cool Objectivists and some Objectivists who seem to have been attracted to Objectivism as a philosophical excuse to be an asshole.