Appreciate it DohteM.
I have a 95. The 95 is the OBDI model.. 96^ Is when they changed over to OBDII. OBDI is much better if your planning on boosting in the future. But like someone said its not as big of a gap anymore. 95 Still has a little bit of an upperhand. OBDII's are a little more torquey. The handling on all e36 M's are outstanding. BUT your looking at a 12 year old car. If its stock suspension. Your first thing to do is save up for shocks. Mine were actually in good shape but I slapped some Bilstein coilovers on mine so I could slam it to where I wanted. You won't be disappointed though. Espesually with the prices dropping so much now. I don't feel like typing up all of what to look for but google "Looking to buy a e36 M what to look for" and a ton of threads will show up from bimmerforums & bimmerfest.
Also I don't know what car you currently have but be prepared to pay for everything. Maintaintence or repair.
Here's a good site for info on pretty much step-by-step how to's. Along with the parts you need for sale. And some general info.:http://www.pelicanparts.com/bmw/index.htm
What color you looking into? Does the car have a site for it, like autotrader or whatever?
I'll post some pictures up of mine in the 'post your car' thread.
If you have any questions or wanna BS about the car. Post it up in here or PM me.