Check out this effects reel:
A fan that runs http://www.thecaptainkirkpage.com
is making a director's edition of Trek V that is closer to what Shatner wanted to do back in '89. Anyway, he's getting some help from some computer graphic guys, and they've gotten some of it done.
I've always liked Trek V a lot, but I think with some new effects and a beefed-up ending, most people that loathe it (and there are plenty, unfortunately) will see it in a better light.
I hope this guy is able to get his version done, and more importantly, I hope Paramount gets off their asses and lets Shatner do his official Director's Edition of Trek V.