I've been slowly making my way through First as Tragedy, Then as Farce, which I picked up while browsing the Strand back in the spring and then purchased as a supplemental counterweight to the delightfully light/fun Shantaram. Žižek isn't really breezy, but he's certainly brilliant, and more importantly willing to ask pretty hard questions.
The book is part dissection of the contemporary neoliberal status quo ideology, and part argument to revive the idea of (haunting music) Communism. It's already delivered a few gems, such as this explanation of the uselessness of the modern Leftist opposition:
In the good old days of Really Existing Socialism, a joke popular among dissidents was used to illustrate the futility of their protests. In the fifteenth century, when Russia was occupied by Mongols, a peasant and his wife were walking along a dusty country road; a Mongol warrior on a horse stopped at their side and told the peasant he would now proceed to rape his wife; he then added, "But since there's a lot of dust on the ground, you must hold my testicles while I rape your wife, so that they will not get dirty!" Once the Mongol had done the deed and ridden away, the peasant started laughing and jumping with joy. His surprise wife asked, "How can you be jumping with joy when I was just brutally raped in your presence?" The farmer answered: "But I got him! His balls are covered with dust!"
A lot of the rest is somewhat remedial for anyone with a critical eye for the world: how a "kinder" — or more recently "greener" — capitalist status quo has taken hold and is recycling its opposition into its own system, etc. The interesting piece to me is not this critique, but the argumentation to seriously (re)consider the Marxist alternative.