Yeah, I suggest that too since its dropped in price now the X-FI range is out.
If you could afford X-FI though, and you have a decent set of surround sound speakers, that is the way to go. Added virtual surround for music, etc built in, and the latest EAX built in into Hardware for games. Plus a new Crystilser music function which makes MP3's sound alot better I've heard.
Audigy 2 will definietly be cheaper though, and is worth it.
Plus the chips allow you to get a bigger surround setup when you want it if you haven't got one now
I have a Sound Blaster Live card still (4.1 channel max) running on a Creative set of Inspire speakers in 2.1 formation, and think the sound could be a little better at times.