I personally like the Live! series. If I buy another then I will get the 5.1 version, but I bought mine right about when it came out.
Personally the audigy and audigy2 seem like a waste of money for what I do. Listen to music and play the occassional game. If this is basically all you are doing and as long as you arent a crazy music person then you probably wouldnt even be able to tell the difference.
to me though I stopped really getting new cards after the Live! it has been through so many different machines.. I might get a new one so i can have two machines with it, but since I usually only play music on one the other make do with my "extras"