Yeah, yeah, few things are as annoying as an Objectivist who's had too much of the Kool-Aid. But that doesn't mean that you shouldn't read Atlas Shrugged. IMO your education simply isn't complete until you've read it. If nothing else, you'll miss a lot of references to it in blogs, and few fates could be more ignominious than that.
It's a long book, and parts of it drag. But you can get an idea of what it's about starting here.