Joey,
My two cents. . .
You spent upwards of ten grand on your speakers and probably won't be upgrading them for a long time to come. I suggest a similar strategy in upgrading your other components. Do one at a time, starting with the preamp, and be patient enough to save up enough money and search out a great deal in order to buy something that you won't feel the need to upgrade for a long time. Don't skimp on these components. Purchase a high quality preamp or amp and it should last you a decade or two. That kind of time frame makes it worth saving up an extra grand or two to make the best purchase possible.
I recommend staying with one of the best-known and universally-loved high end brands that is recognized for its ability in manufacturing tubed electronics (Cary, BAT, Conrad Johnson, ARC, VAC, etc. -- listed in no particular order and by no means an exclusive list). Brands like Jolida, although offering a great price point, simply aren't going to offer you the years of listening satisfaction that you will get with a premium brand. As for an integrated, I doubt the power supplies of most inexpensive integrateds are going to be able to supply the current that you need to make your Summits sing. Separates provide you with more ability to tweak your sound, as well. For instance, some prefer the sound of a tube pre with a solid state amp. By going with separates, you can get a great tube pre, and then audition it with various amps, both tube and solid state, to see what imparts the best sound to your ears.
Just remember, the more time you are willing to take to do the research and auditioning and the more money you are willing to spend on the initial purchase (within reason, of course), the more likely you are to be satisfied with your purchase over the long term and not feel the need to upgrade in a year or two. It is kind of like purchasing the Vantages over the Summits, and then realizing that you really wished you had purchased the Summits.
I would suggest looking for a good used tubed preamp from a premium manufacturer in the $3,000 to $4,000 range. That's what I did, and I am very happy with my CJ and don't expect to upgrade it for a long, long time. Good luck with your efforts and keep us informed on your progress.
