How tricky is installing XP over Vista on a laptop?

Hi,

I want to install windows XP over Vista on a Compaq Presario laptop F500 (less than a year old) and I’m worried about XP drivers and any other problems I might encounter.

How difficult is it?

I’ve installed an operating system before and reformatted the HD on a normal PC - which is what I want to do now, but on a laptop - this sounds dodgy from what I’ve heard so far – xp drivers, sound drivers etc.

Any help appreciated

Compaq Presario F500
nVIDIA C51
high definition audio controller

network adaptor:
broadcom802.11b/g WLAN
NVIDIA nForce networking controller