Here is a link to a Yahoo group that might be of interest to you; http://groups.yahoo.com/group/electr...s/messages?o=1
I've posted here a few times about the electric propulsion system on my Ericson 27, now two years old. You should be able to search "electric propulsion" to find some info. I don't post much here as I have found some on this site to be too close minded to bother. I do however keep an eye out for people like you that are looking for information.
Another link; Boat Bits
tells an interesting story about being dismasted with an electric drive.