Ever since the release of Windows Vista & Microsoft boned gamers around the world by removing hardware-accelerated sound the need for a separate, discrete soundcard has been dwindling to near nothing.
If you have a recent motherboard & you haven't listened to on-board audio in a while you may be surprised. Realtek (Blech! I know, right?) actually has competent audio chipsets out there that provide surround sound, Dolby, DTS, and NEO. Realtek's drivers are actually stable, full-featured & they are very aggressive about fixing bugs as they release new driver versions with great frequency....the exact opposite of Creative. I'd only recommend Realtek if you are using one of their 888, 889, or 890 audio chipsets, though.
However, if you are still dead-set on getting a separate soundcard then there aren't too many options in that price range that are not Creative. Auzentech's X-Raider is one I'd seriously research.
Avoid everything made by Turtle Beach at all costs. Turtle Beach's drivers will make you think Creative's drivers were written by the gods & delivered to your PC on the backs of angels.