I agree with alberporter the ARC cd-1 is an excellent cdp. I would say your vt-60 is a much weaker spot in the chain than the cd-1. My first priority would be going to a vt-100 if you have upgrade money. You were talking in terms of 3K for a cdp and you could get a used vt100 for less than that and it would make a large difference in your system.I am not familiar with the rogue 99 but i can tell you there is definite synergy using an ARC preamp with other ARC equipment. Another pre that works very well with ARC is the audio note M2. I also think you could do much better with your speaker cables. Alon makes a very nice cable called black orpheus. Nordost Blue Heaven works well. My favorite is Nirvana but that is a little pricier.
My priorities in your sytsem in order of implementation would be 1)vt100 2)speaker cables 3)see if you can demo an ARC preamp in your system 4)better ic's used magnum vi or Nirvana 5)Albertporter is right the roller blocks are very good. Not quite as good but cheaper and still effective black diamond mk iv cones 6) if you still want a cd upgrade get a used ARC dac 3.
My priorities in your sytsem in order of implementation would be 1)vt100 2)speaker cables 3)see if you can demo an ARC preamp in your system 4)better ic's used magnum vi or Nirvana 5)Albertporter is right the roller blocks are very good. Not quite as good but cheaper and still effective black diamond mk iv cones 6) if you still want a cd upgrade get a used ARC dac 3.