which one should i use, i am expecting shipment of the audigy 2 by mid week. i googled the audigy 2 and found decent results but want a user opinion of the card if possible. i bought from a friend in another forum for 35$ so i couldnt pass it up the lowest retail i could find was 150 dollars. i really like my audigy four but think this 2 series might really outperform it. opnions would be very helpful thanks........