here is another option - scanner mouse for about $100 in Aus..

Can you use it with windows or mac, scans up to A3. There is an extra windows cd for stitching scans together.

Biggest hassle is never lift the mouse otherwise you have to start the scan again.

http://www.engadget.com/2011/08/24/lg-announces-lsm-100-scanner-mouse-saves-valuable-desk-space/

With the lg hand scanner, you can wave it around in any direction it blends everything it, only downside is lifting, great for doing small playfield areas without removing any hardware. Some colours are not perfect but just trace and colour correct.

For cabinets and large areas I would opt for the flatbed style.

In addition with the LG scanner it states on the packaging for PC / Windows only, but there is a downloadable update from LG which allows for Mac use - which is what I have done.