With a hot economy, and with .us widely used, this would be a great name to have.
The "bio" field, which ever one you pick, is only going to become more important. Biochemistry, cell biology, genetics, microbiology, bio-terrorism, others?
And the trade part? I suppose there will be buy/sell/trade in stem cells or some other equally controvesial material.
I like it, and would reg and hold.
Dave