Ot Help choosing a linux compatible sound card

[Nick Stockton]

Hey all,
I was wondering if anyone had some advice on a good sound card that would be 
Linux/windows compatible.
It can be either 5.1 or 7.1.
At the moment I have a set of Logitech Z-5500 5.1 speakers so it doesn't 
really matter as long as the card can play 5.1.
The card must have a SPDIF optical toslink port and be able to pass through 
AC3 and DTS streams to my receiver.
I'd also like it to have bit-perfect playback using ASIO supported natively 
for when I'm in windows so I can bypass windows kmixer but I could probably 
live with out this as long as it supports DTS pass through in 48 and 44.1 to 
my receiver and doesn't sound to bad.
Above all though I'd like it to be supported by alsa in Linux.
Any ideas?
Thanks in advance.

Nick