http://blog.macsales.com/22108-new-mac-pro-2013-teardown pics aren't as big as I'd like, but it does confirm a thing or 2: 1. cpu is socketed and is not de-capped. upgrades look physically doable. 2. gpu cards are not soldered in, we'll see if apple or anyone else offers gpu upgrades. also, really doesn't look like there's many internal braces/components/fasteners. hopefully it'll actually be fairly easy to work on!