Has anyone had experience with Boston "Digital" #BA-735 Speaker System (originally built for Gateway)? I have a new Pentium (4) with XP and wish to use these speakers with it. I understand that the "Audity 2" digital sound card might work, but would like to talk with someone who has used these speakers with XP and a digital card. They are digital, only, no analog connection. I love the sound of these speakers.....any help would be appreciated.