As it gets colder (well, for us southerners) I've been spending more time warming up the dub. A mate of mine told me that don't need to warm up new cars at all - you can start driving straight away. I not the kind of guy who trusts hearsay, especially from someone who knows less about cars then I do!
Anyway, my (limited) research has found some answers.
Basically, what i've found out is that for newer cars it's recommended to let the car idle (don't rev as this can do major damage) for at least 40 seconds allowing the oil to spread throughout the engine. Then it is safe to move off.
Whilst you are driving it is wise not to go over 2000 revs until the oil is at optimum driving T. This is NOT measured by the temp gauge that we all have on our dash. This is the water temp - oil takes longer to heat then water.
I would wait a furthur 5 minutes after the water temp gauge has hit optimum conditions before hammering your car if you want to avoid any long term damage.
Anyway, that is what I have found out so far. If anyone else knows more information please post here as I'm interested in knowing if I'm on the right track.