Transformers Thundercracker Bust ($60). Limited Edition of 400. Soaring swiftly through the clouds, Thundercracker gazes with scorn on the creatures below and soon he'll be soaring into the Javits Center but you better catch him quick as he's limited to just 400 pieces worldwide! Got this from AFX. http://www.actionfigurexpress.com/newyococon20.html Edit: I hope Skywarp is as well.
You should be able to get it from AFX website after the Con. WW Grimlock was a SDCC exculsive I think it was 600 but there were available on the site to.
I am going to wait to see if AFX will have a special on Thundercracker and their exculsive starscream before I purchase him.
Just an FYI. BBTS has him up for preorder too: http://www.bigbadtoystore.com/bbts/product.aspx?product=dmc10931&mode=retail