I recently added an Octave Jubilee preamp to my system and its the best preamp I've ever heard, a superb product in my opinion. Adding a tube amp would be too much for me-the tube amps I've heard-a few- are fine well built components, but don't really do it for me. The additional cost of operation and bother wouldn't be worth it for me, and my next move will be to upgrade my amp with SS. For me, a tube or hybrid preamp and SS amp strikes the right balance. Not a bad plan to start with a tube or hybrid pre and if you find yourself wanting more "tubey", go from there. Your ears may be different-its easy to recommend what we have-self affirmation-but your experience may be far different from mine and I don't think there are any absolutes other than what sounds good to your ears in your room.
Good luck!