No problem. It's probably a wise idea to get your other books and magazine stacks out of the way before buying any Astronomy texts. I have found that once I start getting into that, I get more and more curious and start buying more books. Call it an addiction.
Anyway, I have two National Geographics, two Wired, two MIT Tech Reviews and a Scientific American in the Queue currently and I'm feeling like a slouch because of it. Until recently it was raining all the time around here... shoulda cleared the decks!