Never heard of Palit?  They're an interesting brand that usually adds something to the reference design.  The 9600Gt I bought has HDMI, display port, DVI and SPDIF.  It also uses 3 phase power instead of the standard 2 phase.  Thought to increase stability.  I think Palit makes cool cards and they have a decent rep as far as I know.  Asus does have a better warranty.  The 8800GT is more powerful than the 9600GT.  Though the 9600GT is usually a bit cheaper.  Depending on you rig, you may not need the 8800GT.  What are the rest of your specs?  Monitor size and resolution?