step wise WRF installation in ubuntu

[vbm]

Hi,
I am very new to Ubuntu and WRF as well
I have DELL laptop with 8gb RAM, 2 TB hard disk, n i thk 2 or 4 gb graphic card
Can any one suggest
1.which Ubuntu is good for latest WRF i mean ubuntu 12.04 or 12.10
2.installation command from beginning
3.do i need to start with netCDF
4.do i need to install NVIDIA drivers
5.is any other operating system is better then UBUNTU

I never used any linux operation system as i used only windows.

regards,
WayBov