Generally for gaming I would recommend the 3570k, but I'm sure you've done your research, and you're getting a deal.
As far as wires , my motherboard only came with 2 sata data cables so I had to pick one up. With the hdd, SSD, and disk drive you need 3. Grabbed one from the local computer shop for $4
So check into that , but you got a nice rig here.