I don't think that you're going to be able to find many more high-limit cards at this point. Maybe try for more CL's, I suppose, but really, it's time to start paying these down.
You can either target the high-interest cards first, or the smaller balance cards to get the satisfaction of PIF'ing some cards. Definitely time to start paying down though. If you're having trouble making yourself do this, you might be headed for some scary times with the high limits that you have. Sorry, hope that doesn't sound too preachy; I just have some alarm bells starting to ding-ding-ding.
* Credit is a wonderful servant, but a terrible master. * Who's the boss --you or your credit?
FICO's: EQ 781 - TU 793 - EX 779 (from PSECU) - Done credit hunting; having fun with credit gardening. - EQ 590 on 5/14/2007