I heartily third the recommendations of Lt Cmdr Matt and Tobian, and suggest you pick up the superlative Star Trek Star Charts at your earliest convenience. Our very own SIR SIG was one of the people Geoffrey Mandel consulted for the project, and a lot of his good advice appears to have rubbed off. It may not mesh completely with everyone's notions of canon, but it is a superb attempt to move the fictional Trek universe closer to our real one.
As an aside, this is my 666th post. Woo hoo!
“In our every deliberation, we must consider the impact of our decisions on the next seven generations.”
-- Great Law of the Iroquois Confederacy