[quote name='lwtait' post='85025' date='Nov 7 2007, 05:37 PM']what are scalloped frets?[/quote]
Basically, you know how the wood inbetween frets is flat on a normal fretboard?
On a scalloped one it isn't, they make a shallow U shape in the fretboard between the frets, allows for better bending and other techniques. Yngwie Malmsteen is problably the most famous user of them (he's a guitarist, a bloody good one though), but Sheehan likes them on the top few frets for some reason.
Google for images of scalloped frets or Yngwie's Start/Sheehan's Attitude and you'll understand.