to the forums, hope you stick around!
As for coilovers, I would say the PSS9 kit from Bilstein is by far the best available.
Adding 19" wheels to an e36 and lowering the car (w/ the use of coilovers) will undoubtedly give you no room in your fender well. Even upon rolling your fenders, you will still have very little room. My sits a little lower than stock, and with 17's I have very little room. Some guys here have 18's, but I question how well they would do with some aggressive driving.