Serpentine is much quieter system, easier to change belts, etc. However, there are some things to keep in mind:
Water pump is specific to serpentine....v belt pump runs opposite directioin
A/C compressor is fixed mounted in bracket, belt tensioner makes slack adjustment. IT is direction specific
Alternator is also fixed but will run either direction
Power steering pump is fixed location.
I have done the swap by getting brackets off of a Vortec truck and finding the accessories. HOWEVER you must realize that the head mounting holes are Vortec specific.