I have the Fujitsu 7160. I bought in from B&H. It wasn't cheap, but I had (and have) about three or four hundred thousand pages to do. Paid about $800. It is VERY fast - my usual time is 1 second per page (and it does both sides of the page at once). I scan all my stuff as a searchable PDF. With my magazines, I use a utility knife to cut off the binding, then fan the pages (old magazine pages tend to stick together) and load them in the chute. The scanner pulls them through, uploads into the computer, and the software converts to PDF. The conversion part takes about 5 minutes or so for a Runner's World size magazine, faster computers probably less. The guy that said he has about 240 mags - that can be done in an afternoon, no problem. Note that the maximum width that it will scan is about 13", so if you have something like a large newspaper or map, it won't take that as one sheet. I clean the scanner every 5,000 scans, takes about 15 minutes. It gets all the paper stuff in it as you scan, and I like to keep it clean. No staples, take them out! Also, stuff like glue on the pages will stop the scan, so you have to watch out for that stuff. The good news is if you spend the $800 and finish your project, you can get probably half of it back by selling on the scanner.
There is a cheaper Fujitsu model (Scan Snap?) that has gotten good reviews, but I never tried it, so won't speak to it.