Of adding this to the game, it's the NX Class refitted with a hull.
http://drexfiles.wordpress.com/2010/04/25/nx-01-refit-diagram/
Thought it would be nice to keep the NX Class and updrade it to a tier 2
(hope the link works I'm doing this from an iPod)

Edit: used Darren Kiltors link
Comments
I say keep asking, makes the ship look a great deal better.
If we get an NX-Refit, let's get this one:
http://drexfiles.wordpress.com/2010/04/25/nx-01-refit-diagram/
editing with your link mate