Had no luck with my current card (ati 2600xt) and snow leopard ( I have 2 x 30" Apple Cinema Displays - work beautifully in 10.5.8). Why do I need a new card in 10.6.x ?

Currently borrowed an nvidia 9600gt (sitting on my desk) from a guy at work, hoping it will help. I'm planning the install using the following guide;
http://aserebln.blogspot.com/

I have my external 30Gb 2.5" partitioned into 8Gb iATKOS7 for emergency repairs, 8Gb Snow Leopard Installer (from retail DVD - which I own), and 12Gb for my other installers, vlc, chrome, etc.

I have also created a 2Gb USB Stick with chameleon boot loader as per the guide referred to above. I need some help with DSDT for ASUS P5E-VM HDMI board and EFI string for nvidia 9600GT.

I've never done a dsdt decompile/patch, etc. I'm going to give it a go, has anyone here tried it for this board ? any luck with sleep, onboard audio, etc. I have DSDTSE installed, but I read that a dump should be taken under linux live cd to get a clean non-patched version of DSDT from the board ?

Also I've never done anything with EFI String and video card, my 2600xt just worked when I installed iATKOS 7, now patched to 10.5.8.

I'l let you guys know how it goes, I love this motherboard too much to replace it, but if I spend more than 2 days on it, might go gigabyte, and use the p5e-vm hdmi board as a HTPC.