I'm using a "mk 1" Creative Audigy Platinum (with the external i/o unit) which does me fine for recording from my PSR 3k. The external box is at the end of a 1m+ length cable and so can be placed conveniently at the end of my work space.

Cautionary note: I am using the independant "KX Project" drivers (for EMU chipset soundcards) because the Creative drivers for this particular model are total rubbish running on XP.

I would hope that for the newer models the "proper" drivers work correctly.