Changing set - wondering about strobes

So for several reasons, I am looking into upgrading my underwater set up.

I shoot Canon, and have a 20D that I'd like to take under (I'd love to take the Rebel 400, but I'm going diving in Nov, and don't see getting it a housing before then).

I'm thinking of the Ikelite housing and was wondering if there were any strobes that did TTL other than Ikelite's? Do the Inon?

And although I would like to be able to use TTL, I assume that I will want to shoot manual sometimes -- so would like strobes with a fair number manual settings. What would you suggest? And what suggestions with out TTL capabilities?

(Also the housing isn't purchased yet, so feel free to tell me if you really like another housing )

I would suggest the Ike DS-125 with the Ike housing. The DS strobes give you the best of both worlds in the most convenient way. You get true eTTL-II and you get manual with flash compensation right under your thumb on the back of the housing. There is no need for fumbling with strobe head at all.

The Ikelite DS125 is a very good choice. Alternatively, the Inon Z240s offers great performance in a smaller package. Also offers TTL functionality and 10 or so manual settings.

Not debating the popularity of Ikelite DS125s, but there is another option.

Get the Heinrichs TTL converter of your choice, and you open yourself up to a variety of TTL capable strobes for your particular camera. I know there's an eTTL converter for Canon's 20D, but you should double check for strobe compatability.

Oh, and this would also open up your housing choices if you're set on having TTL.