Although a bit expensive I have a Canonscan 8800f that can act as a flatbed, slide, or film scanner. Not very quick but good quality - some of the cheap slide scannere do not do a very good job. Some people here have used a camera to take pictures of projected slides. I think there is a newer Canonscan.
Sony Vaio Z Canvas release date, price and specs: Another Surface Pro rival but for the US