in my opinion, i would cut down on the RAM.
I would shrink it to 8GB.. 16 is over kill for anything and is not needed.
I would also recomend getting a better processor.. the X4 BE is a little older and is being phased out. Yes you will get better "bang for the buck" than an i5.. but the i5/i7 socket is much newer and can be easily upgraded in the future. (instead of having to replace mobo and cpu with your next upgrade)
with $1750 to spend, you are only using less than $1000 here it looks likes. You holding back any?