For one thing, Dave Hill uses top of the line equipment. $20,000 camera, ring flash, and about 8-12 strobes on a lot of his shots.
But if you want some answers about how to process to make your photos look like his, go
here and buy the dvd's....But remember the key is great lighting from the start....shit photos are gonna be shit photos no matter what.
This guy also does a similar effect to Dave Hill, he actually goes to my school and has told me how to achieve the look myself...Just not my style..Check him out.
http://evanhuntphoto.com
BTW both of these are young guys like myself, 20-21.