New build:can i go less($) without losing less(preformence)

here is my build:





Antec DF-35 Black Steel Computer Case

Antec DF-35 Black Steel Computer Case
Item #: N82E16811129088
Return Policy: Standard Return Policy

-$60.00 Instant
$30.00 Mail-in Rebate Card

$139.99
$79.99




TOSHIBA DT01ACA050 500GB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive

TOSHIBA DT01ACA050 500GB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive
Item #: N82E16822149380
Return Policy: Standard Return Policy

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Recover Your Data(expand for options)

-$10.00 Instant


$79.99
$69.99




SAPPHIRE Radeon HD 6870 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card (100314-3L )

SAPPHIRE Radeon HD 6870 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card (100314-3L )
Item #: N82E16814102948
Return Policy: VGA Standard Return Policy

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$10.00 Mail-in Rebate Card

$169.99

1

AMD Gift - Dirt3 Game Coupon

AMD Gift - Dirt3 Game Coupon - OEM
Item #: N82E16800995114
Return Policy: Standard Return Policy

-$49.99 Saving


$49.99
$0.00




Antec High Current Gamer Series HCG-900 900W ATX12V v2.3 / EPS12V v2.91 SLI Certified CrossFire Certified 80 PLUS BRONZE Certified Active PFC Power Supply

Antec High Current Gamer Series HCG-900 900W ATX12V v2.3 / EPS12V v2.91 SLI Certified CrossFire Certified 80 PLUS BRONZE ...
Item #: N82E16817371050
Return Policy: Standard Return Policy

-$45.00 Instant
$15.00 Mail-in Rebate

$319.98
$229.98
($114.99 each)




G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model F3-10666CL9D-8GBRL

G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model F3-10666CL9D-8GBRL
Item #: N82E16820231311
Return Policy: Memory Standard Return Policy



$38.99




EVGA Z68 SLI 130-SB-E685-KR LGA 1155 Intel Z68 SATA 6Gb/s USB 3.0 Intel Motherboard

EVGA Z68 SLI 130-SB-E685-KR LGA 1155 Intel Z68 SATA 6Gb/s USB 3.0 Intel Motherboard
Item #: N82E16813188097
Return Policy: Standard Return Policy

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-$60.00 Instant


$169.99
$109.99




Intel Core i5-3570K Ivy Bridge 3.4GHz (3.8GHz Turbo) LGA 1155 77W Quad-Core Desktop Processor Intel HD Graphics 4000 BX80637I53570K

Intel Core i5-3570K Ivy Bridge 3.4GHz (3.8GHz Turbo) LGA 1155 77W Quad-Core Desktop Processor Intel HD Graphics 4000 BX80637I53570K
Item #: N82E16819116504
Return Policy: CPU Replacement Only Return Policy

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$229.99




Microsoft Windows 7 Home Premium Upgrade

Microsoft Windows 7 Home Premium Upgrade
Item #: N82E16832116713
Return Policy: Software Standard Return Policy

-$10.00 Instant


$119.99
$109.99

Subtotal: $1,038.91

sorry about space i just copy/paste from newegg shopping cart