coins-e.com too
Of the ones listed, only the following have an API:
cryptsy.com
btc-e.com
bter.com
vircurex.com
And of those, cryptsy.com's API is broken (temporally I'm sure) and BTER is down.
Thanks man!!
I was looking for a site that traded IFC and you found it.
Edit: THe IFC exchange is busted. THey should trade DVC for IFC or some other stable but cheap coin.