Something people here might find useful: https://www.unrealengine.com/what-is-unreal-engine-4 Only price is that if you release a commercial game or application made with it, you'll have to pay 5% royalty after the first $3,000 per product per quarter. No need to pay royalties at all if you're using it for other stuff (like film).
I've not been keen on changes to UE4 versus how things were with UE3, but I'm definitely interested in taking a look at UE4. Even if most of this crap is going to go over my head.
I'm downloading it now. I won't be doing anything with it, I'm just wanting to play about with it. Plus Unreal Tournament.