"The absolute limit I'm willing to spend would be ?800 (around £650 or $1000) but I'd like to keep the price lower than that, so I would have some money left to spend on actual games. A new mouse and keyboard will have to be factored into that price."
From the OP.
Actually, it's called reality. While you can't get everything you want, you can take whatever you can, whether you're supposed to or not. You can do whatever you want, so long as you can. Whether it's morally right or not is up to the individual.
Uhhh... Why in the fuck would there be lawsuits? The characters may not all be Sony exclusive, but they've all been on the Playstation. It's not like they're using Master Chief or Mario. Besides, if they got permission, all's fine.