You can get the same gaming experience with an I5-2400 and the same video cards. That should save you a ton of money.
If you intend to use the system mainly for gaming you should look at MUCH less CPU and equal or stronger video. That will game better for the same dollars spent.
Memory is fairly cheap now, but anything over 6gb is not helping you. The 10GB you have spec'd in the first system is just adding $50 to the price without helping you game. The 8GB in the second is closer to what you'd want to buy.