I have to agree with dromatador and superkoax.
You have;
- Lighting (lots and expensive)
- HDR, or at least tone mapping (I use Photomatix)
- Lucis Arts plugin (or my version in the link below)
- Highlight/shadow retouching (again as below)
It's not impossible and I've had some successes at emulating his style as well as Jill Greenberg (<- read Amy Dresser). I've got a couple of tutorials in my signature that may help you a little.
Some examples attached although not exactly the same will give you an idea of how diverse these few methods are;
Dave Hill style - First is purely Shadow/highlight* treatment with Lucis Arts*
Jill Greenberg style - Second is tone-mapping, shadow/highlight* then small amount of Lucis Arts*
My own style - Third is false background, tone-mapping, Lucis arts*, shadow/highlight*
My own style - Fourth is full HDR+tone-mapping, shadow/highlight* then Lucis arts* (yep... real background)
* These are the tutorials linked below
I know they aren't exactly the same but I've not done many of these types of shoots as I've just started getting to grips with it myself.
This should get you on the way. All you have to do now is get some very expensive outdoor lighting and you're off.
Edit: Oh! dromatador has a good point at the end too. Also check out
Florian Schneider for some insipration on compositing in new backgrounds.