Wizards of the Coast have put up an amazing Known World bundle up at RPGNow, it includes the D&D Rules Cyclopedia (the compilation of the Basic, Expert, Companion, and Masters rules) as well as all 14 (!) Known World Gazetteers giving you an entire fantasy world to explore (and/or steal from).
Not only is the D&D Rules Cyclopedia an amazing resource for early D&D, the Known World is a delightful setting rich with ideas to use and borrow to make your game world more fun. At it is priced at an amazingly good price of $15 for all this gaming goodness! Get it now before WotC realizes that they are almost giving this product away.
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