Bought my 1998 E36 318 ti Compact last week, been grand so far! Picked it up with 133,000 miles on the clock for £850.
Only problem so far was a rubbing noise coming from one of the front wheels, after some investigation I managed to track it down to the shield that sits at the back of the brake disk - pushed it back a little by hand and presto!
Only thing left is to fix some niggles with the interior - missing bulb and bulb housing for the heater controls (housing to be found in a scrapyard I'm hoping!) and the gearstick has a tendency to come off if given a tug - should probably fix that!
Also going to be looking at MPG - got around 230 miles for 30ish liters of fuel, that about right?