Laptop died, building PC

Solution
PCPartPicker part list: http://pcpartpicker.com/p/KnOp
Price breakdown by merchant: http://pcpartpicker.com/p/KnOp/by_merchant/
Benchmarks: http://pcpartpicker.com/p/KnOp/benchmarks/

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($219.99 @ Newegg)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.99 @ Newegg)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard ($134.99 @ Newegg)
Memory: Corsair XMS3 8GB (2 x 4GB) DDR3-1600 Memory ($62.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($79.99 @ Newegg)
Storage: Samsung 840 Pro Series 128GB 2.5" Solid State Disk ($149.99 @ Newegg)
Video Card: Sapphire Radeon HD 7970 3GB Video Card ($392.98 @ Newegg)
Case...

hero1

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May 9, 2012
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PCPartPicker part list: http://pcpartpicker.com/p/KnOp
Price breakdown by merchant: http://pcpartpicker.com/p/KnOp/by_merchant/
Benchmarks: http://pcpartpicker.com/p/KnOp/benchmarks/

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($219.99 @ Newegg)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.99 @ Newegg)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard ($134.99 @ Newegg)
Memory: Corsair XMS3 8GB (2 x 4GB) DDR3-1600 Memory ($62.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($79.99 @ Newegg)
Storage: Samsung 840 Pro Series 128GB 2.5" Solid State Disk ($149.99 @ Newegg)
Video Card: Sapphire Radeon HD 7970 3GB Video Card ($392.98 @ Newegg)
Case: Fractal Design Define R4 (Titanium Grey) ATX Mid Tower Case
Power Supply: Corsair Professional 650W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($109.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($24.98 @ Newegg)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($99.99 @ Newegg)
Total: $1305.88
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-03-17 18:51 EDT-0400)

200 to spare for whatever you want!
 
Solution

9a3iqa

Distinguished
Jan 5, 2012
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These components add up to roughly $1200, are all excellent and should be enough to throw whatever you want at them:

i7-3770k processor (would be more useful than i5 when games start to use more threads in the future)

HD 7970 graphics card (as powerful as 680 but cheaper)

Gigabyte GA-Z77X-UD5H motherboard

8GB DDR3 RAM

Antec High Current Pro HCP-750 power supply

Cooler Master Storm Enforcer case

And you're good to go!