Thanks to everyone for the input!!! I'm still in drooling mode, but it looks like a 58 is going to be the first round of B&H-ing. David's 2-head asymmetrical Elinchrome suggestion feels good too, as does an Elinchrome ring flash.
The big deal has been; do I really want to buy an A900 and FX glass? The answer is coming to a pleasant "no" closing. I wrote to Kurt @ http://kurtmunger.com/
who also has a very well presented Sony Alpha review site and it was his opinion to let go of investing in an A900 'now' with the A77 doing so nicely since the most recent firmware update. Yes, I will own an FX body somewhere along the way, but given the alternatives to $8k worth of Zeiss glass, I can buff out an A77 bag 'o goodies and have more room for strobes.
Given the bit of light loss of the translucent mirror, it would seem that fast glass is still in fashion, but lighting is still a major budgetary consideration. Looks like things just need to be lit better to get the most out of the A77, adding credibility to the old saying "it's always something".
Even with the following glass on my B&H wish-list:
Sony - SAL-70400G 70-400mm f/4-5.6 G SSM
Sony - 16-50mm f/2.8 Standard Zoom Lens
Sigma - 10-20mm f/4-5.6D EX DC HSM
Sigma - 85mm f/1.4 EX DG HSM
And, adding external mics, wind-fuzzies, cards, extra battery & charger, external monitor, vertical battery grip, yada-yada, I am well under $10k, so with the Elinchrome strobes and accessories, I'll come out with a full stills/video kit for $11k-ish. I'll happily wait for the next FX body and one or two primes for the occasion...
I'm Ebaying my NEX5 and all the OSS glass and accessories as soon as I get back to the USA in a couple of weeks and picking up a G1X for a walk-around piece. The thought of a no-fuss fixed zoom cam really is appealing. Still, I was on the beach on the Caribbean coast of Costa Rica today shooting my friend's first surf lesson. Ye olde NEX5 kinda gets it... well, sort of...