My method for scanning my wife's text books for her LE1600 and my magazines to load on my iLiad.
For text books: Kinkos $1.49 to cut off spine at 8.5" wide. That last is a very important point with larger text books, 8.6" doesn't fit even on flat bed scanners. They do good work, it comes back same day (or while you wait if they aren't busy) and is exactly 8.5" wide if it was wider.
For magazines, a staple puller and a heavy pair of scissors, just cut down the spine along the outside edge (I find that easier to get straight than folding it flat in the middle and cutting.)
Scanner: HP 4345 mfp. Color scan 300dpi, auto-size, duplex, holds 50 sheets and will scan the whole stack in just under 2 minutes. Scans directly to Adobe PDF 1.4 files and delivers them to you via 100 base TX ethernet via FTP.
You can load them into Acrobat 7 and run the reduce file size but you get at most a 10% reduction. I just run my rotate and crop on the as-delievered-files and load them directly onto my iLiad.
Yesterday's 64 page Infoworld became a 128 page landscape PDF to read on the bus ride home last night, in less than 6 minutes from grabbing the staple puller to loading the file on an MMC card.