Regarding the earlier comment about stripping out DJ's, one would have to write software which would keep multiple recordings of the same song, and apply comparitive calculations of the beginnings and endings of them to estimate which begining and ending was the most accurate (the least segue'd over). I'm working on this, but honestly, probably quite a while before it is completed.
In the meantime, orldog suggested a program to easily play the beginning/end of a song, which I've made. Just run the file (no installation is needed), and drop the song(s) onto the window. You can play the first few seconds or last few seconds of the song with a single click. It's got a delete button to send the song to the recycle bin.
I've put the file on my website, but the forum interface isn't letting me post the URL. Anyway, the beta version is done, so if anyone wants it I can send it to you.
Let me know if anyone has any suggestions.
-Phil