I want to start using my SB-600 speedlite off-camera. I do not want to use an iTTL cable; those things are too limiting for what I intend to achieve. I'm stuck choosing between waiting to upgrade to a D90, which will give me CLS capability, and buying a set of Alienbees Cybersyncs. I can afford Cybersyncs right now, but a D90 would have to wait a while. It will be easier for me to make a decision if I have an idea of how they compare. 1. With CLS, my understanding is that I need to either let the built-in flash affect the exposure or have a preflash delay. Is that correct? 2. I am aware that RF triggers will reduce the sync speed by 1/3 - 2/3 of a stop because of the radio delay. Does CLS have this limitation in the non-preflash mode? 3. I know that CLS can let you adjust the output power remotely from the camera and that a Cybersyncs setup would require me to adjust it directly from the flash. Does anyone find this to be a pain? Is there anything else I haven't thought of?