The Ork Stompa photos have started popping up elsewhere on the web, so I'm going to post them here:

The model is rather large and orky, with tons of little gretchin running around on it. I haven't seen any mention of a price point, but I'm assuming it will run somewhere in the $95 price range, similar to the Baneblade and Shadowsword kits. Of course there are plenty of discount retailers on the internet and occasionally locally, so there is no real reason to pay the MSRP on GW models.