I'd also love to know of a good vendor for D. Roseana or butterworts in the US (or NYC/NJ). The fungus gnats just rode in on a staghorn in my house. And I've got these little tiny non-flying flies in the soil of a terrarium I've just started up..
I would suggest anyone looking for any carnivorous plants take a look at the North American Sarracenia Conservancy's benefit auction currently underway at TerraForums.
__________________
Be who you are and say what you think. Those who matter don't mind and those who mind don't matter.