Need help with fork selection/related questions
 

I'm researching options for upgrading my fork but have a few questions. My current setup it a non integrated headset (pictured), Crane Creek Aheadset manufactured by TH Industries. Fork tube diameter is 1 1/8", 43 degrees of rake- this is the extent of what I know. Questions:

1) I'm assuming (perhaps erroneously) there's not much to gain by upgrading the headset. If this isn't the case, what are the benefits of upgrading and which headsets should I consider?

2) I'm looking at the Easton EC90, Ritchey WCS and the Felt 1.1 forks. I can't find anything that says they are or are not compatible with non integrated headsets. Anyone know?

3) I take my bike on and off my roof rack frequently, almost daily. Will carbon drops handle this type of abuse? Should I get aluminum drops?

Is there any other considerations? Other forks I should look at or stay away from? Thanks in advance for any info...