Is this a good computer and will it work?

Antec Nine Hundred Black Steel ATX Mid Tower Computer Case with Upgraded USB 3.0

$109.99

Western Digital WD Blue WD5000AAKX 500GB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive - OEM

$59.99

Kingston SSDNow V300 Series SV300S37A/60G 2.5" 60GB SATA III Internal Solid State Drive (SSD)

$69.99

CORSAIR Enthusiast Series TX650 V2 650W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified Active PFC High Performance Power ...

$89.99

G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-8GBRL

$62.99

ASUS M5A97 LE R2.0 AM3+ AMD 970 SATA 6Gb/s USB 3.0 ATX AMD Motherboard with UEFI BIOS

$78.99

COOLER MASTER Hyper 212 EVO RR-212E-20PK-R2 Continuous Direct Contact 120mm Sleeve CPU Cooler Compatible with latest Intel 2011/1366/1155 and AMD FM1/FM2/AM3+

$34.99

EVGA SSC 01G-P4-3652-KR GeForce GTX 650 Ti 1GB 128-bit GDDR5 PCI Express 3.0 x16 HDCP Ready Video Card

NVIDIA $75 value in-game coin coupon

$159.99

Intel Core i3-2100 Sandy Bridge 3.1GHz LGA 1155 65W Dual-Core Desktop Processor Intel HD Graphics 2000 BX80623I32100

$119.99

Grand Total $786.91

This is the 1st time building a computer and I want to be able to use it for gaming and regular use. Is all this stuff good enough to run BF3 on high or ultra. The reason for a computer is because consoles are just getting too old for me. Also is there any stuff I can downgrade on to save me money. Like do I need the 16GB of RAM? Also is Windows 7 Home a good operating system or can I boost it a little? Also does how much does Directx11 sound cost? Do I need anything else or is this good?