If you are just looking for an unreal digital razorblade
http://www.sonymediasoftware.com/Products/ShowProduct.asp?PI D=965
Vegas is hands down the best and fastest editor out there. It has its weaknesses ( BIG ONES!!! ) but in editing it shines. Us geeks around here will race on edits every once in a while, and any of my interns can smoke the uber users of other apps when it comes to speed and accuracy of edits, ESPECIALLY in the difficult case for most apps of when there is no click track.
Our Samplitude rep though is getting close, and that app is looking better and better in the editing department.
Samplitude and Cubendo though, with RME gear make unreal zero latency recording machines. PT only seems somewhat adequate for editing when there is a click, and each event starts at the accent ( not real world except maybe midi ).
Sam and Vegas allow you to just use ONE mouse tool if you want for everything, selecting, splitting, resizing, per event fade and volume, delete, move, copy, every editing function you can think of. Awesome editors, for recorders though PT and Nuendo have them both beat IMHO.