I have both the Muse and the Fortissimo II (OEM). The Fortissumo II is a much better card than the Muse, but you'd be surprised at how well the Muse performs considering the price. I recently had to retire an old SBLive value because it just didn't work that great under WinXP, replaced it first with a Muse XL, then later replaced that with the Fortissimo II. Both can be had dirt cheap over at newegg.com ($16 for the Muse, $32 for the Fortissimo II OEM).