Thanks a lot guys.
The guy is asking 10.5 for it with around 70k miles mostly highway though. I figured I could talk him down to 9.5 or so hopefully. If I could find someone to grab up my car or whatever and only pay out 3-4 more thousand for a 2002 car from a Dx would kick ass, but I have around 5k saved up plus the car, and I graduate from college in like... a year and a half or so. I really want the Evo8 especially the one Dakar M posted up...
I figured the Sentra would probably have a better trade in/sale value than the DX, for when I am able to get the evo.
I appreciate all the info.