For those of you that dont know him let me introduce you to . . . .
Mr. Phatmatik Pro

Now for all you cats who go from one program to the other to sample like from cool edit pro to FL Studio or from Recycle To Reason, whatever to whatever else. I bring to you your VST solution. Izotope Phatmatik Pro 1.52. Now just from looking at it you should be able to tell what it does. In case you don't, lemme explain . . .
Using FL Studio as my host, load up this vst (10 day demo available at http://www.izotope.com/products/audio/phatmatik/) as an instrument. Its plug and play after here. Click the folder icon in the top left of Phatmatik and find your sample (wave format only) and double click it to load. Boom your sample shows up and if you press C on you keyboard the sample will play. completely. (I think its the C down from middle C.)
Now you have three auto chop features. You can chop by beat in 16ths, 32nds or you can auto chop using the auto chop feature and adjusting the sensitivity (its right next to the folder icon. and the other chop buttons are clearly marked).
For shits and giggles click the 16th chop feature. Now your sample is mapped out along your keyboard in nice little parts. Look at the slice markers and they tell you exactly which key they are mapped to. Now whats great about this (in case you haven't already realised) is that you can position the markers anywhere you want, have a chop in the beginning and end of the song and somewhere in the middle without having to make physical chops in the file. All at extremely little cost to CPU. Now you can play the sample like an instrument recording your midi notes in the piano roll and having the corresponding slices playback.
Izotope Phatmatik Pro also has numerous other features. Adjust the sound of the sample or individual slices by messing with modulation, pitch, reverb delay etc.
You can also play the sample in different octaves through the nice little transpose feature. That is also mapped to your keyboard.
Other applications: chop up drum breaks, etc anything you want really.
So stop running back and forth, program to program, try this all in one solution.