[guesswest]

I'd suggest picking up Russell's 'Problems Of Philosophy'. It's an essay available as a little book that covers a huge amount of stuff. The amount it squeezes into such a small space is a testament to his writing skill - because it doesn't feel dense at all, very readable.

Beyond that I'd suggest picking up one of the 'guides to western philosophy' - theres a bunch of these floating about, all similarly titled. I heard Penguins' is pretty good, google tells me the authors name is Hamlyn.