one issue that's worth mentioning. If you're planning on using the card's analog outs (as opposed to digital outs), the inside of a computer is chock-full of electromagnetic interference and is therefore not a good environment for analog signals (i.e. you'll pick up noise).
Still think that you might be VERY pleasantly surprised by the sound of the chaintech av-710's analog out. Further elaboration, the via envy chipset provides 5.1 analog output. In order to allow the chaintech to provide 7.1 analog output, the manufacturers added a 2 channel burr-brown d>a converter. The card has a "high quality stereo out" option that allows one to route stereo analog out through the burr brown, and to perform upsample d>a conversion, etc. Result is a surprisingly warm and accurate d>a conversion. Yes, the card only has 1/8" stereo mini outs, but ESPECIALLY for the money, this is a giant killer as far as 2 channel analog out (and bit-perfect spdif) is concerned. At a minimum, at a whopping $25, worth checking out while waiting for the echo julia (which uses the same via envy24ht-s chipset) to become available.
fwiw