This in from CNet Download.com
There are several well-regarded, free ways to take advantage of the Print function to transform just about any file to a PDF. PrimoPDF and doPDF sit at the top of the list, but what about reverse engineering that conversion? Converting in the other direction, from a PDF to a Microsoft Word-compatible format like DOC or RTF is trickier.
For one thing, there's a lot of crap out there. Many PDF-to-DOC converters have similar or even identical names, differentiated sometimes by nothing more than a cunning tap of the space bar. Many offer features that are hamstrung in various ways unless you pay for an upgrade, and just about all of them offer imperfect conversions. Even with these problems, though, you can get a reasonable conversion from the four programs and three Web-based services listed below...