[djmcmath]

A slide scanner is the appropriate approach, depending on how many slides you have and what your time is worth. Your local photo shop will probably charge about $3 per frame to scan those, which adds up pretty quick. Similarly costly, however, is the time it takes to scan them: I can do a roll of film in about half an hour, if I focus whole-heartedly and the film is already clean and everything works right.

So on the one hand, say, 20 rolls of 36-frame film is 720 frames, or about $2200 to scan at a shop. On the other hand, that's about 10 solid uninterrupted hours of scanning, plus the cost of a scanner and software, plus any overhead if you get interrupted and have to resume, or lose your place, or your files get corrupt and you lose 200 frames.

(shrug) I'd say scan 'em yerself, but then, I still have 300 rolls of film on a bookshelf waiting for me to get around to scanning them.