I got the Enterprise-A way back when it came out. Nice model, but the stand was abysmal and has long since snapped in half. The build quality on the DST ships doesn't seem great to me, so I haven't felt it worth spending the £40+ on any of the others.
I'm tempted by the upcoming version of the Bounty from TVH. Their Bird of Prey does look like it's better quality than some of the others, so I'm considering it.
Their props are really fun - I have the TOS, TMP and TWOK phasers, and the TWOK communicator. I'm trying to find one of the TOS communicators with the metal grill, which is proving elusive or extortionate on ebay.