Computer help: Downgrading: Drivers N Stuff

Downgrading: Drivers N Stuff

I have a HP Pavilion Dv9825nr, which came with Vista, which is horrible, flawed, and... horrible. I've decided that I don't want to risk running Windows 7, so my hope lies with Downgrading to Windows XP. I'm rather experienced with Computers, but I've never messed with my Operating System. So: My Questions:

1) I know that I have to make sure that there are drivers available for my computer to run XP. I found these: Driver - Keyboard, Mouse and Input Devices Date Version Previous Size
» HP Quick Launch Buttons
08-2008 6.40.8.2 H » Version: 20.97M
» HP Quick Launch Buttons
12-2007 6.40 B - 19.65M
» Synaptics Touchpad
10-2007 10.0.13.2 » Version: 24.26M
Driver - Network Date Version Previous Size
» Broadcom Wireless LAN Driver
07-2008 7.00 E » Version: 7.26M
» HP Wireless Assistant
11-2007 3.00 » Version: 3.32M
BIOS Date Version Previous Size
» WinFlash for HP Notebook System BIOS (for Notebooks with Intel Processors) - Microsoft Windows Vista-Based
12-2008 F.59 A » Version: 3.08M
Software - Internet Access Date Version Previous Size
» HP Update and HP Software Update - Critical Security Update
12-2007 1.00 C » Version: 462.01k
Software - Solutions Date Version Previous Size
» LightScribe Host Software
11-2007 1.10.13.1 » Version: 5.88M
» HP Software Update
06-2007 4.0.6 » Version: 2.64M

Are these all that I need? Or is this not enough? Do I need to find a graphics card Driver?


2) To actually downgrade, do I have to buy a disk version of XP? Or can I "Upgrade" for somewhere around have the cost?

Thanks, if you need more info, just ask. I am DONE with Vista.