Good advice above.. just keep in mind 2 things.. most cheaper scanners will report very high scanning resolutions they can produce.. but the scanner maxes out around 1200 or so... trying to use a non-pro scanner to get results at 2400dpi or higher is just wasting time and filesize. If you use a pro model.. especially one designed just for negatives, then yes, go as high as you can "afford"... a negative scanned at 2400dpi will be about 24 MB and could take about 10 minutes to scan... just some food for thought!