I agree on the valvetronic issue. I just figured I'd try every other possible fix before even thinking about that.

Good thing is the valvetronic problems can be lived with. My car only has the valvetronic/rough idle on very cold mornings. The rest of the time it's perfectly fine. When I start it on cold mornings I just hold my foot on the pedal to keep the RPM's around 1500 until the temp needle starts to move, once it starts to move even the slightest the car idles as it should with no SES light.

__________________
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