Was a bit busy..
460 SLI over 480 GTX - abso bloody lutely.
Cooler, quieter, faster, cheaper. Nuff said really. That's why I got Xfire 5770. £250 for 5870 performance which at the time was setting you back more like £350.
Blower fan - no. It's just woefully inadequate on Fermi and should be banished to heck.
TJ07 - boing.
Antec - don't like them but that's just me.
If some one means Xonar as in the sound card then please, please please don't do it. Ashton you're not wrong in the slightest. I had the D2X and it was nothing but crashes, looping sample freezes and bsods. Ramguy from Corsair became so frustrated that he simply compiled his own driver by adjusting one of the other drivers. This made it better, but NO WAY would I pay over a hundred smackers for something so messed up.