If you're one of the growing ranks who prefer to vault their bills, statements, and other important documents on disk rather than in a filing cabinet, you might want to take a close look at the Fujitsu ScanSnap S300 and S300M (the former is for PC, and...
Strength
Small, reliable, easy to use and store. Duplex scans two sides in one pass.
Weakness
PDFs aren't searchable without OCR. Not a TWAIN device, so you need the Fujitsu software.
Bottom Line
This scanner is so compact, reliable, and fast it's brilliant for saving any paper document in digital form. It's powered by USB so it's portable, and fits in a drawer.