It depends on what you want to read up on specifically. The Austrian School comprises of more than economics nowadays. I would recommend the following:
On Economics:
Hayek's The Road to Serfdom and Individualism and the Economic OrderMenger's Principles
Boehm-Bawerk's Karl Marx and the Close of his System
Mises's Human Action and Socialism
Rothbard's Man, Economy and State (with Power and the Market) and The Mystery of Banking
Reisman's Capitalism
Hoppe's The Myth of National Defence
Once you have waded through the classics, writings by modern Austrians such as Boettke, de Soto, Huelsmann, Garrison etc. are useful to give an up-to-date image of the Austrian School's preoccupations.
On method:
Mises's The Epistemological Problems of Economics and The Ultimate Foundations of the Economic Science
Hollis' and Nell's Rational Economic Man (note: they are not Austrians, but the book supports the Austrian method)
Hans-Hermann Hoppe's Economic Science and the Austrian Method
You should also pay careful attention to articles on Aristotelianism and Austrianism. Personally I think these give a better account of the deductive method than Mises (e.g.http://www.veritasnoctis.net/docs/aristotelianapriorism.pdf) .
On ethics and political economy:
Hans-Hermann Hoppe's The Economics and Ethics of Private Property and Democracy - The God that Failed
Rothbard's For a New Liberty and The Ethics of Liberty
Jan Narveson's The Libertarian Idea (not explicitly Austrian, but the work is invaluable)
Jan Lester's Escaping Leviathan (same as above)
Chris Sciabbara's Total Freedom: Towards a Dialectical Libertarianism
David Gordon's Resurrecting Marx
http://www.lewrockwell.com/hoppe/hoppe5.html
Kevin Carson also occasionally has some good articles on Austrian themes (e.g. http://www.libertarian.co.uk/lapubs/econn/econn102.pdf, http://www.mutualist.org/id45.html)
The list is by no means exhaustive, but it's a good start.
Aside from reading articles at Mises.org and LewRockwell.com, my first real foray into Austrian economics consisted of reading two Rothbard books online about 7 years ago: Power and Market, and What Has Government Done to Our Money? After that I was hooked. Now, I'm working my way through Man, Economy and State.
FWIW, if you liked Raico, then I also recommend the lectures by Livingston and Higgs. Particularly "The Rise of the Nation State" by Livingston.
Thanks I've done that
DBratton: FWIW, if you liked Raico, then I also recommend the lectures by Livingston and Higgs. Particularly "The Rise of the Nation State" by Livingston.
In another matter, today I copied my mises.org collection of eBooks on a DVD for an importer here in South Africa.
Don't neglect History!
Conceived in Liberty - Rothbard
The Real Lincoln, How Capitalism saved America - Thomas J. DiLorenzo
And I haven't keept track of what all Thomas E. Woods Jr Has written. I have read several of his books, and his are the ones I generally lend out to potential Liberals.
Everything you needed to know to be a libertarian you learned in Kindergarten. Keep your hands to yourself, and don't play with other people's toys without their consent.