DO NOT buy any flatbad scanner, if you want to see the best film can (and it really can!). There is only few good scanners which you should look at (my advice). For 24x36 it is Monolta Scan Elite 5400 II, and another is Nikon 5000 of course. Unfortunately they do not scan 24x56 or 24x65mm.
If you want to try Medium Format, up to 6x9sm, then Nikon 9000 or older 8000 (though it slow) are the best. Also suitable for any 135 film frame sizes. But there are alternatives - Minolta Multi Pro is one of them (with Scanhanser).
If you want to go panoramic 6x17sm then again - Nikon 9000+Vuescan+Stitching, or Imacon Flextight series scanners. Imacons are very good scanners, with perfect software. They are very convinient to use can deal with any film size.
See some information here http://www.filmscanner.info/en/FilmscannerTestberichte.html
Note, that scanners with diffuse light source are preferable, because show much less of film grain.
I personally is film-shooter and I love film. I have switched from digital in 2008 year. Lots of my friends also did this. Good Luck to you! http://superka-photo.com/?albums=1.%20India%20panorama&photo=4&lang=eng