First time build desktop need opinions please!! please reply!!

I'm building my first desktop and have yet to get any replies on 3 other posts and it's killing me   If you guys could give me a build that would be cool and I don't want ADM I want an INTEL i5-2500k (I might overclock in the future) but everything else I'm open for suggestions. Thanks.

MOBO: ASRock Z68 Extreme3 Gen3 LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
CPU: Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics 3000 BX80623I52500K
RAM:Team Elite 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) Desktop Memory Model TED38192M1333HC9DC
GPU:Antec NEO ECO 620C 620W Continuous Power ATX12V v2.3 / EPS12V 80 PLUS Certified Active PFC Power Supply
PSU:SAPPHIRE 100314-3L Radeon HD 6870 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card
HDD:Seagate Barracuda ST500DM002 500GB 7200 RPM 16MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive
CASE:COOLER MASTER HAF 912 RC-912-KKN1 Black SECC/ ABS Plastic ATX Mid Tower Computer Case
DVD-RW:ASUS 24X DVD Burner - Bulk 24X DVD+R 8X DVD+RW 12X DVD+R DL 24X DVD-R 6X DVD-RW 16X DVD-ROM 48X CD-R 32X CD-RW 48X CD-ROM Black SATA Model DRW-24B1ST/BLK/B/AS - OEM
OS: Microsoft Windows 7 Home Premium SP1 64-bit - OEM
cooler: COOLER MASTER Hyper 212 EVO RR-212E-20PK-R2 -- Thanks taking any opinions and suggestions and please!! help me find a better looking case I really dislike that one and if you do find one can you please see if it's easy to install because this will be my first time building a desktop(as i wrote in the title), Thank you again!