Building drivers from scratch for Ubuntu 12.04

Do I need to remove my current intel drivers before attempting to follow the build guide? (I presume on 12.04 I can't use the graphical installer, even if I have the raring kernel? I tried and seemed to hit unmet dependencies).

I am familiar with the use "make" process, so that isn't a problem, but will I need to upgrade my kernel to 3.11? Anything else obvious I should be aware of before taking the plunge?

Also if anyone knows, how do these drivers compare to the ones at the ubuntu swat x ppa or Stefan Glasenhardt's PPA?