So did you work out a work flow that works for you? I would be curious to see what you have come up?
Haven't you heard of sceyeX? Its a document camera from germany.. you should check out the site at http://www.sceye.eu it's a little ex-y but the functionality and flexibility is great and you can use it for all sized documents and objects as it is not a feeder or flatbed. No maintenance costs as there are no moving parts. worth a look at least. and the mac software is really good.
Interesting. Is that price $500 euro for the basic version? Seems easy, but I'd want to see the results and it's twice as expensive as my ScanSnap which does both sides at once.
BTW, I've very happy with my scanner. No, I'm not paperless, but instead of having to dig through folders, having documents lost in the file cabinet, it's all electronic and it saves me on filing time cause the stuff I still keep just goes in a single pile in a storage cabinet by year. The idea is that unless unusual circumstances, I'll never have to dig for it.