I found mine by googling car dealerships in my area.

Managed to find it at a local, small, euro car dealership. I like buying from dealers as it's much, much easier to negotiate the price.

They had my 2004 4.4i listed for 13.5k... I walked out the door with it for 9k, including tax, title and plates.

__________________
Current Bimmer
2004 X5 4.4i Sterling Grey Sport/Premium

Past Bimmers
1991 318I Alpine White
1995 740I Alpine White
1991 525I Schwartz
1998 323IS Scwartz
2004 330CI Cabrio Titanium Silver Metallic
1995 540I Schwartz
2000 Z4 3.0 Titanium Silver
2000 330ci Coupe Titanium Silver