Stupid failtank forgot to FRAPS or screenshot it. Dammit.
Amazing fight, cheers on teamspeak at the end. We rule! etc. I'm now 9/12 on heroic, with the guild as a whole being 10/12 (I haven't killed Blood Princes heroic).
We are just 3 boss kills away from getting the guild's first Frostwyrm. We tried the Sindragosa normal achievement tonight using the zerg method and got close. We were unlucky on the tombs and I was too cocky as regards the timing of blistering cold. I think it's doable.
EDIT - Oh, and I am now swaggering around with an improved organ...!