I'll be honest: the last time I went to Volo, I had a so-so experience. Their wine was fantastic and a couple of the dishes were good, but no one at my table was impressed. If it were me, I'd be more likely to try something different -- Think sounds like a good option because you'd save money on drinks, and it's something new to try.
I also think Salpicon sounds like a good idea, too. I've never been there, but I had a great experience at Sol de Mexico --- upscale / regional Mexican is always a delight, in my opinion.
Hope wherever you choose, you all enjoy it! Let us know.
-- Nora --
"Great food is like great sex. The more you have the more you want." ~Gael Greene