You get EAX... and the ability to use your creative card WITH your notebook speakers in case you don't want to use headphones. If you have headphones, of course you want to use the Audigy.
For a total system replacement, if your system specs are high, they may not have any 9300s to give you and you could end up with an M170 or an E1705. If your stock specs are not that great then expect to get another 9300.
Where would...
Look, do you guys want the ability to run non-stock configurations? It takes experimentation. I blew up 1 motherboard before I got the XPS bios flash working properly. Deal with it.
Also, Dell can replace the bios, which they do as...
I have to send it back to them. It's broke anyway, they don't check. I don't have anyone replacing it for me, I have to replace it myself and send the old one back, but I can abuse it before I do.