(http://i.imgur.com/OQatK.jpg)
Initial modelling isn't far off from being done. The basic silhouette is done (pending feedback) so I will be looking to add smaller details soon.
I actually want this to be more "The cage " era of TOS - that time has been fascinating me a lot recently, so I have been playing around with points on the nacelles (though not shown) as well as having the grill like ends rather then the glowing orbs. I like the idea of the excelsior class actually being around for ages before we see her in STIII as well as being around in the TNG era.