Hey Lousydood. [And everyone else, first post, yay, had to join after seeing this discusion].
I happen to be minoring in Phil at the moment (no job if I major'd, heh). The chair of the philosophy department, however; happens to have a Ph.D in the Philosophy of the Mind ... with a focus on the Mind/Body problem - which lies right in the metaphysics bubble. He might disagree with your characterization of his field as ' nonsensical crap '.
I think the problem that most people have with phil (at least, the people I've bumped into) are people that have never taken an academic course in philosophy. They have all of these ideas about what they think it is/isn't, most would likely have a hard time listing some of the more major schools of thought or issues facing modern thought. I think that "metaphysics" happens to a buzzword for a bunch of people who have little idea of the issues that are contained within it.
I do realize that this is not you (since you have a BA in phil).
I also happen to have a strong interest in metaphysics and epistemology. I have done moderate readings with the Philosophy of Religion (mainly in my first year courses) and value the more 'abstract' ideas in Philosophy as helping me think outside the box. My point is, I can empathize with the OP and take offense to the broad catagorization of my interests as being crap or meaningless. Or having people who seem to have little idea of the nature of Philosophy and metaphysics in particular, pass off advice and 'facts' about what is and is not a part of a particular school of thought.
I'd also like to point out to Nathelion that scientology is more of a religion (that's how they describe themselves) than a school of thought.
Now that that is out... a couple of good books to read ? hmmm. Head over to the local college/university and take a look at their reading list. One of my great first year texts that covers the basic arguments in the main branches of philosophy is called "Coffee and Philosophy". It's a dialogue between a few characters and has reference to a number of other works. There are a number of different areas of metaphysics, different problems, arguments, propositions, and beliefs. If you want to immerse yourself in a particular area of phil, you owe it to yourself to build a solid framework. Many more advanced papers will have terminology and whatnot that build from early readings. Jumping headfirst into Kant is not an easy task.
In any case, I digress. My advice ? Take a course or three. I'd advise an intro phil, a critical thinking course aimed at philosophy (those well defined and formal systems, lousydood mentioned) and then an intro metaphysics course. If you are lucky, the intro course will have a little of everything so you can see what you like, the critical thinking will teach you basic fallacies and methods of reason (very important if you want to construct your own arguments and defend them) and then the intro metaphysics will show you the basics. Who you read depends entirely of what problems you concern yourself with. If you want to jump into the "can machines be human/human-like" debate, then track down some of Ray Kurzweil and his boys (pro) or John Searle and his m8's (contra).
One of the guys on this topic had it unwittingly right : Philosophy is whatever you want it to be... to you.
- Ryan
PS: My pick for quote from metaphysics is a little more well known... and makes just as much [non]sense; it just does so with less thought and without requiring as much context.
PPS: Here's a list I've fetched of online accessible papers that deal with the philosophy of mind. Yes, I found it on wikipedia.
http://consc.net/online.html Be warned... they are not all "introductory" in language.