$2500 Upgrade Help

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http://hardforum.com – So in the next few weeks i'll be looking to upgrade my main PC which is (in my opinion) pretty outdated. Current specs are as follows: Case: Corsair Obsidian 650D Processor: i7-920 w/ Corsair H100 Motherboard: MSI Big-Bang XPower PSU: Corsair AX1200 RAM: 24GB G-Skill Ripjaw X DDR3 1600 GFX: 2x MSI NGTX580 Lightning Xtreme Edition (3GB Cards) in SLI Sound: Asus Xonar Essence XTS Storage: 1x 128 GB Crucial SSD (forget model) (Main OS) 2x Western Digital Black 640 GB drives RAID0 (games) Monitor: I-INC 27" 1920x1200 1) What will you be doing with this PC? Gaming (Hardware)