Ok, thanks.

I found a couple ones that god good reviews on amazon. Can you tell me what you think?

I found this one. Its a $200, but i can buy it used for $50
Amazon.com: Creative Sound Blaster X-Fi XtremeMusic Card: Computers & PC Hardware


Then there's this one, it's about $200, but used is $60
Amazon.com: Creative Labs Sound Blaster Audigy Platinum eX Soundcard: Computers & PC Hardware


Then this one is a $200, but i can get it used for $100
Amazon.com: Creative Sound Blaster Audigy 4 ( 70SB061000000 ): Computers & PC Hardware



Which one do you think is the best, and/or recommend?