Hi! Its close to Christmas time, so that means its time to start looking for upgrades for my PC! With the parts listed below, what would be the best part to upgrade? All that I currently do on my PC is gaming. If you recommend a part(s), please keep the total price under around $200. If you say I need to replace my GPU's, I will sell them both for at least $275, so you can add that to the total price.
CPU: Intel i3-4150
CPU Cooler: Stock
Motherboard: Gigabyte GA-Z97X-UD3H-BK
RAM: G.Skill Ripjaws Z Series 8gb DDR3 2400
GPU: 2 Sapphire Radeon R9 270X OC Edition's in Crossfire
HDD: WD 7200RPM 1TB
SSD: Corsair Force LX Series 128GB
Power Supply: Rosewill Capstone 750W 80+GOLD
Optical Drive: Basic LG Optical Drive
Case: Phanteks Enthoo Pro Black
Operating System: Windows 7 Ultimate x64
CPU: Intel i3-4150
CPU Cooler: Stock
Motherboard: Gigabyte GA-Z97X-UD3H-BK
RAM: G.Skill Ripjaws Z Series 8gb DDR3 2400
GPU: 2 Sapphire Radeon R9 270X OC Edition's in Crossfire
HDD: WD 7200RPM 1TB
SSD: Corsair Force LX Series 128GB
Power Supply: Rosewill Capstone 750W 80+GOLD
Optical Drive: Basic LG Optical Drive
Case: Phanteks Enthoo Pro Black
Operating System: Windows 7 Ultimate x64