I also voted for "both Trek and non-Trek related models." I love seeing other sci-fi ships show up (Eagles vs Constitution-class, Klingons chasing the Millenium Falcon) but it's on a case-by-case basis for me, whatever tickles my fancy.
For me, much of the "original" ships ARE non-Trek - there were no Lyrans or ISC in TOS (or in TNG, DS9, etc), and I've not cared much for the Taldren, 3rd-Generation Romulans. For awhile I replaced those with the "SFB" versions that are out there but when it came down to it, they looked like lumps of lead to me.
So now they're BSG-R ships, both "canon" and "fan."
It's just so wonderful to be able to have choices, and based on the hard work of a community that cars about the game. Thanks, model makers everywhere.