What do you want to do? Upload your pictures to A.net? In that case a negative/slide scanner is the minimum given the current standards here.
Any slide scanner will scan negatives, with the main advantage that quality is way better than flatbed scanners (with or without negative adapter).
Good negative scanner at reasonable prices are the Hewlett-Packard S20 PhotoSmart and the Minolta Dimâge Scan Dual II. Great results can be achieved with the Nikon Coolscan IV or 4000ED, but they come at a price. However I'm not too sure how long you can meet the quality standards should you buy the HP or Minolta; it's getting harder every month to upload non digital pics.
Check out this site for reviews of all scanners and determine what fits your budget and standards:http://www.pcphotoreview.com/pscScanners/Film,Scanner/PLS_3126crx.aspx
I'll be happy to give some more advice if you need some.
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