Without knowing any more about this guys set up, his budget, or projected usage, I'm not even going to bother with any sort of in depth answer.
I hate when people make open ended threads like this. Its a waste of space.
Better yet...here click on this
http://forums.stangnet.com/773356-torque-tech-kb-vortech.html
...everything that needs to be discussed about most of the suggestions you're going to hear has probably already been covered in this thread.