I myself like the ritual of making the beat with the producer while in the studio...but sometimes you are just going with what is created at the "moment" and you work around it as long as your feeling it Of course there is the alternative...you can go to a beat site and buy a non "exclusive" or "exclusive" beat to meet whatever it is you are thinking about at that given time. Seems way more time efficient and you can get a separated beat so you can arrange (add or subtract instruments) the song however you want. What I have noticed is that there are a lot of clean sounds off these sites to work with so the person mixing it shouldn't have to much of a problem tutoring the sound...I'm not sure if these beats are prearranged as far as the "panning" of the sound position. I might mix web beats with producer beats to round off an album...any thoughts on these two processes weighted against each other from a personal experience?