and stop thinking.
However make sure that the maint. is up to date and think strongly about getting a prepurchase inspection (depending on where you are located.) Read everything you can about the E36 3 series you can. Then again there are alot of us out there that can help you out along the way. GOOD LUCK! it's a great car. IMO
Edit: Just read your post in the E46 3 forum. Good luck on that one. Could be as simple as needing the cooling system replaced, to warped valves.