Have you found the bundled Brother software lacking?
If so, take a look At ABBYY:
http://www.abbyy.com/. Versions of ABBYY software are bundled with Fujitsu scanners (the company owns a minority stake in ABBYY) and DEVONthink Pro Office, which allows the user to scan directly to a DEVONthink database.
Frankly, if you plan on scanning a lot of receipts and other papers I think that you will ultimately wind up ditching your Brother flatbed scanner. It's simply too cumbersome on several levels to use a flatbed for your purposes (Been There, Done That!) If you truly want to go "paperless" a flatbed scanner is not the tool for the job.
Flatbeds are fine for scanning artwork, photographic prints and occasional letter-size documents. But they were never intended as replacements for document scanners. I used to let my scanning pile-up because using the flatbed was such a chore; scanning a document took a lot longer and multiple steps. Now I just open up the Fujitsu and do my scans in a matter of seconds vs. minutes using the flatbed.
The ScanSnap Manager icon can reside in the Dock for easy access. It has multiple presets and you can create your own so you can quickly select a preset depending on what you are scanning. You don't even have to interact with the software if the current selected preset suits your need. Just open the scanner, insert the paper(s) and push the blue button.
If you have never used a document scanner think back to the last time you were in a doctor's office and the receptionist scanned your health insurance card. Remember how fast it scanned the card? Now scan a similar item using your flatbed scanner, apply OCR and save the file. See for yourself how long it takes in comparison...
I would save the money you would spend on third-party software, bite the bullet and get a Fujitsu. The S1300 is tiny in comparison to an all-in-one printer, so it can sit beside your Mac. There is a smaller portable scanner and a larger desktop scanner too. (The S1300 can run on USB power, albeit slower than when plugged into AC.)
I read a lot of pro and user reviews. The Fujitsu bested the Neat scanners by a wide margin. I've been using mine for around a year and it has been a significant time-saver compared to my Epson flatbed. I wanted to use the flatbed so I could avoid paying for another piece of hardware, but the experience was so frustrating that I eventually gave up.
Good luck!
