Possible S4 owner.

What's up guys... I'm Paul and am located in the Northern Virginia area.
 
 
I'm looking at a 04' S4 with a V8.   It would be my first Audi and i'm looking to find out what kind of car it is.   What are the typical mods and things to look for when buying? Any major things to kep an eye out for? 
 
Any help would be appreciated. 
 
Thanks.

First off, welcome to the forums!!
 
I don't know a whole lot about S4's, especially the B6 models.  If you post this in the S4 forum, and read through a couple of the stickies, I'm sure you'll find more than enough answers, though.