I picked up a Cruzer Lite from Amazon and couldn't be happier with it. It's well made, looks great and covers less of the phone's face than the Seidio Surface it replaced. The Surface was pushing up my screen protector. The Cruzer Lite has room to spare. No worries though, there's no chance of the phone coming out of the case accidentally.
The Cruzer Lite fits the extended battery/cover just fine. All the cutouts line up perfectly. I had to put it on and take it off a couple of times before I got it to fit just right. The best method for me was to start at the bottom, move up along both sides simultaneously and then pop the top in last.
I can confirm that it works great with the Seidio Surface holster, like they were made for each other.
Thanks to Cruzer Lite for the case and crankerchick for posting that it worked with the holster. That bit of info was what I needed to hear to make the purchase.