For something similar to the Burton Custom Flying V but a little bit more boutique, try the NeverSummer Heritage, Jones MountainTwin, or YES The Basic (just a little bit softer than the other two). Similar to the YES Basic, but even again a little bit softer and more playful, is the Slash Park (Slash is a new snowboard company from Gigi Ruf - they're manufactured by Nidecker). I know that it shouldn't matter, but this is also (in my opinion) one of the prettiest boards out right now!
Smokin, Venture, and Unity are all handmade in the good ol' USofA, super boutique, and make great product. I'm just not familiar enough woth their all-mountain/freestyle boards to recommend a specific one!