Naked Economics[1] is a good basic introduction. Hayek's Road to Serfdom[2] is also a key text if you want a historically embedded one. An interesting point about it is that Orwell reviewed it, with qualified praise, shortly before writing 1984. Like 1984 it is wider in its scope (i.e. even if you had the bandwidth and the models, how do you stop the people running them from becoming corrupt?). Finally "From Marx to Mises: Post-capitalist society and the challenge of economic calculation"[3] has a very comprehensive review of many aspects of the debate.

[1]http://www.amazon.com/Naked-Economics-Undressing-Science-Rev...

[2]http://www.amazon.com/Road-Serfdom-Documents---Definitive-Co...

[3]http://www.amazon.com/Marx-Mises-Capitalist-Challenge-Calcul...