Xerox DocuShare OCR Module - this sells for $4000 and generally is sold with Content Rules for $7500.
OCR processing takes a lot of CPU power and the notion of running this on your DocuShare server for large numbers of documents is rather unwise, but it can be done.
ABBYY Recognition Server - this starts at $1850 for 100K PPY (Pages Per Year) and can be used for many purposes including scanning or copying files into a watched folder to output to your preferred format (Word, Excel, PDF, ePub, text, etc.) and you direct the output to another folder.