First time builder and I'm checking the compatibility of the parts I'm looking at before I order. xfx ati radeon hd6950 (hd695xcdfc), msi z68a gd55 g3 atx mobo, and i5 2500k. Looking to make a mid-range gaming rig. Again, I'm a first-time builder, so, if I'm way off, I won't take offense for pointing out the noobery. Thanks.