I recently bought an Epson v1000. It scans any original document or photograph up to A4 as usual, and has good OCR capability for extracting text for editing. The beauty of this scanner is that it can also scan either slides or both B & W and colour negatives. I've just rescued loads of our old slide and colour photos dating back to the 1970s with it.
Software bundled with the scanner can perform colour correction, but the one-shot correction feature of Paint Shop Pro v5 does the job much better, and the results I got are as good as, if not better than the original images.