I've been using external soundcards for awhile now, and find it easier to use, using a Sennhesier/epos GSX 1000, and I like it, there are also some options that have more robust connection options as well.
I've kind of moved away from liking internal sound cards awhile back.
also the GSX 1000 doesn't even have drivers or software to install, and is controlled whole by the screen on the device, so that's one less thing to worry about with compatablity and such (it's meant for headphones, so speaker connections are really just a stereo cable, but there are some with richer connection options.
I know some people have asked if EVGA will make an external sound card, and I'm wondering about that too, but for now, they don't.