Need new build help

[Eliga]

Hey guys so my computer recently crapped out and died, so now i need to buy a new computer.. yay.
Heres what I have so far:
DVD drive: ASUS DRW-24B1ST/BLK/B/AS Black SATA 24X DVD Burner - Bulk - OEM

Case: COOLER MASTER HAF 932 Advanced RC-932-KKN5-GP Steel ATX Full Tower Compucase Case with USB 3.0, Black Interior and Four Fans-1x

HDD: Western Digital Caviar Black WD1002FAEX 1TB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive

GPU: MSI N560GTX-TI Twin Frozr II/OC GeForce GTX 560 Ti (Fermi) 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video

PSU and RAM bundle: CORSAIR Enthusiast Series TX650 V2 650W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified Active PFC High Performance Power
and CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CML8GX3M2A1600C9B

CPU and MOBO bundle: Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor BX80623I52500K
and ASUS P8P67 (REV 3.0) LGA 1155 Intel P67 SATA 6Gb/s USB 3.0 ATX Intel Motherboard

Other stuff:
Thermal paste: friend told me to get it Arctic Silver 5 Thermal Compound - OEM
CPU cooler: COOLER MASTER Hyper 212 Plus RR-B10-212P-G1 "Heatpipe Direct Contact" Long Life Sleeve 120mm CPU Cooler

Well thats it, and sorry for no links, i just recently registered to these forumns, i've always used this site but never registered for some reason.
P.S. I bolded what i thought could be changed.

[taekvideo]

Everything looks great to me... solid build lol.
If you have more money to spend the best improvement would be getting a 570 instead of a 560ti. About a 20% boost to graphics performance.