Looking for Upgrade Recommendations

Hey, guys!

I was just let in on a bit of a secret as to what one of my Christmas presents is going to be this year. Turns out I'll be getting a $150 Newegg gift card! The only problem is, I'm not quite sure what to do with it. I was thinking about doing some upgrading to my rig, and was wondering if any of you had any suggestions for a good next step. Anyway, thank you ahead of time, and all of you stay awesome!

Sincerely,

N3wF4ll

P.S. Current parts list:

Case: Zalman Z9 Plus

CPU: AMD A8-5600K

CPU Cooler: Cooler Master Hyper 212 EVO

Mobo: ASRock FM2A75 Pro-4M

GPU: HIS Radeon HD 7870 IceQ GHz Edition 

RAM: Kingston HyperX Blu 8GB

SSD: Kingston SSDNow V+200 120GB

PSU: Antex NEO ECO 620W ATX 12V

Do you already have these? Or are you thinking of getting these?

I'm thinking maybe a 2 or 3TB hard drive (if you feel like you need one) or some more ram (of the same brand/type of course.

HDD: http://www.newegg.com/Product/Product.aspx?Item=N82E16822148834&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&AID=10446076&PID=3938566&SID=

 

If you are willing to spend some of your own money, maybe you could go for a new AM3+ Mobo and processor, or even change to intel with $150 off.

 

AM3+:

Mobo: http://www.newegg.com/Product/Product.aspx?Item=N82E16813131877

and

CPU: http://www.newegg.com/Product/Product.aspx?Item=N82E16819113285

 

If you're a gamer, maybe consider getting a new HD7970 or GTX680 with $150 off.

I already have the parts listed above. I was looking for upgrades to add to the existing system.