Now that I have read 3 books by Doctorow, and listened to one audiobook, I am riding the bandwagon of fans. Neil Gaiman's opinion led me to Doctorow (OK, someone I work with told me to read Doctorow, and someone else told me Gaiman thought Doctorow was great) and I'm very glad.
Read Little Brother, Eastern Standard Tribe, and Someone Comes to Town, Someone Leaves Town. Find a copy of Wastelands Stories of the Apocalypse or just click on the title of Doctorow's story, "When Sysadmins Ruled the Earth," depending on how you prefer to "take" your stories. I listened to the podcast of Down and Out in the Magic Kingdom and was thrilled with it. Go! Now!
Yes, Doctorow's stories are dystopic; they're not happy, but Little Brother has a good attitude of fighting authority and damn it, I'm on the bandwagon and you should be sitting next to me here!