Get it at Greenmangaming instead of Steam. They're already giving a 10% discount, plus you can use the voucher code for a further 20% discount.

I just had a go at Dead Rising 3 PC. From the get-go, I immediately disabled the 30fps cap limit. My machine is quite beefy, and I can say it only runs ok on my setup. It can't sustain 60fps or higher. SLI is not supported yet at this time, so there's still hope it will improve in the future. For now though...