I'd already decided to do this in vague period costume (having assembled an outfit of that sort), but didn't have a full plot in mind until we did the approach shots and I remembered TE Monogrammist's striking image of Ophelia walking to her doom with a sly smile, so I ended up loosely basing it on that theme.
There are two versions of this sequence; my faourite way of presenting it, and the first version of the video, ends with a fade to black soon after I have sunk all the way under. Then I chickened out and decided that a video of an apparent suicide might be just the thing to finally get us kicked off youtube, so added on footage of me coming back out again with the message "No people, animals or transvestites were harmed during the making of this scene". But I haven't posted up either video yet, so I'm up for suggestions to help me choose (if, for example, you want to put me up to posting the suicide one).
The full photoset of this is up now on the Wamdrogony main site. After cleaning off and getting changed, I couldn't resist going under again in another outfit - but I'll save that for another time!

<edit> - nuts, I thought I'd got the hang of the reverse-order-pic-posting-thing, don't know what went wrong this time. Oh well..