If you can afford it, you are better off going with the Yuasa or MotyDesign batteries. The problem with the other ones is that there is no guarantee you are getting a good unit... some will be good and others wont.
Pm me your mailing address i might have something for you dependingi need a new battery and am curious if any one bought one off ebay and if so do you have a link ?
i have seen hundreds of batteries on their i would just rather buy something that some one has already bought and tried and liked