I liked Live From Golgotha. That was a nice, zippy, fun little read. But his high WASP patrician manner is irritating, at least when I see him being interviewed on television. If you were to recommend a collection of his essays, where would I want to start?
I know what you mean about his manner, I get the same annoying vibe from Margaret Atwood, who is the Canuck equivalent, in terms of being WASPy old money, if not talent.
As for his essays, depends on whether you want to read his literary criticism or his more political writing. I've got his Collected Essays which covers everything up to the early 90s, his best stuff I think, but the Selected Essays is good. His essays 'Pornography' and 'The Pink Triangle and Yellow Star' pissed off a lot of people are are a good place to start.