Trying to extract more from my Vandersteen

I've come to the realization that my ideal system is always 2 steps ahead of whatever my current system is. I am only satisfied with whatever updgrade for a few months, before I convince myself that I need to upgrade again. This is as exciting as it is unsettling.

My current system is as follows:
Vandersteen 2CE sig
McCormack DNA-1 deluxe
TAD-150 sig tube preamp
Eastern Electric Minimax tube CDP
Blue circle Power cords
MIT IC's and speaker cables

I had spent the past two years building this current system, and I had been fairly happy with it. I thank this system for introducing me to the world of jazz. Switching to tubes really helped my Vandersteens "sing". I had entertained the thought of replacing the McCormack with a tube amp, such as TAD-60 or other equivalent, but I never did. I was happy with my system and figured it would remain intact for awhile.

Then something had to rain on my happiness or complaceny. Due to a busy work schedule, I was forced to do most of my music listening either in my office through my old NHT and all rotel setup or at home through my Sennheiser headphones. After a couple months of this, I finally had time to do some listening through my main system. It had never been apparent to me before, but all the music coming out of the Vandersteens sounded "veiled". Before, I purchased my vandies, I read and heard all the criticisms regarding this "veiled" or "shrouded" sound. I never felt this was true about my vandersteen's until now.

So instead of making generalizations, I figure this is a good opportunity to "improve" my system. I am still more than happy with the soundstage, midrange clarity, and bass dynamics. Perhaps what I want to improve is higher frequency extension.

All this being said, I welcome all recommendations and comments that need not be limited to the following topics:

tube-rolling...

Pre-amp...
Any recommendations on pre-amps (tube or SS)?
How about a passive unit (Sonic Euphoria, Placette, Mccormack TLC)?

cables...
anyone recommend Purist?

Amp...
Any good integrated's out there?
What do you think about the Eastern Electric Integrated?
How about Krell KAV 400xi? For that matter, how does Krell match with Vandersteens?

Thanks for reading, and I look forward to reading your comments.

Drew