has anybody here done such a move? - I am now considering it for the fact that game framerates do improve with the xfis gaming support and the noticeable fps gains in benchmarks like 3dmark that I have seen. I mainly game and listen to music as wella s watch movies and have my Santa Cruz connected to an external amplifier via good quality 3.5mm > RCA output which in turn is connected to a good set of floorstanders and headphones. I just want to know the ease of use of the xfi, I know you have to switch modes when playing games or playing movies and music (and a handy quick switcher util recently came out) but what is the sound quality difference? assuming I can sell my Santa Cruz for £20 is it really worth the extra £50?