Build Help.

Hello, i'm currently trying to purchase a good quality gaming computer. I'm hoping this computer can play games at max to high settings for a good year or two. I started with the Nvidia 600$ gaming computer build at Cyberpower, ( http://www.cyberpowerpc.com/system/Gamer_Xtreme_1000/ ) and have upgraded it a bit, My budget is around 800. Can't go to much higher then that with taxes.

Here is the build,

Case: * Raidmax Blade Mid-Tower Gaming Case w/ Side-Panel Window
Extra Case Fan Upgrade: Maximum 120MM Case Cooling Fans for your selected case
CPU: Intel Core? i5-2500 3.30 GHz 6M Intel Smart Cache LGA1155
Venom Boost Fast And Efficient Factory Overclocking: No Overclocking
Cooling Fan: XtremeGear Liquid Cooling System 120MM Radiator & Fan (Enhanced Cooling Performance + Extreme Silent at 20dBA) (Dual Standard 120MM Fans (Push-Pull) [+9])
Motherboard: MSI H61M-P23 Intel H61 Chipset DDR3 mATX Mainboard w/ 7.1 HD Audio, GbLAN, SATA-II, 1 Gen2 PCIe & 3 PCIe X1 [B3 Stepping]
Memory: 4GB (2GBx2) DDR3/1333MHz Dual Channel Memory (Corsair or Major Brand)
Video Card: NVIDIA GeForce GTX 560 Ti 1GB 16X PCIe Video Card (Major Brand Powered by NVIDIA)
Multiple Video Card Settings: Non-SLI/Non-CrossFireX Mode Supports Multiple Monitors
Power Supply Upgrade: 700 Watts - XtremeGear SLI/CrossFireX Ready Power Supply
Hard Drive: 1TB SATA-II 3.0Gb/s 16MB Cache 7200RPM HDD (Single Hard Drive)
Optical Drive: 24X Double Layer Dual Format DVD+-R/+-RW + CD-R/RW Drive (BLACK COLOR)
Sound: HIGH DEFINITION ON-BOARD 7.1 AUDIO

Now this build is around 850 atm, and i cant go much higher, i also had a few questions,

Hows the graphics card?

I upgraded from a 550Ti due to many people saying the 460 was better, so its either NVIDIA GeForce GTX 460 1GB 16X PCIe Video Card which is about 80bux cheaper or keep NVIDIA GeForce GTX 560 Ti 1GB 16X PCIe Video Card. If it aint worth it, it would be nice to go with the 460. Also, should i pay for the extra over clocking? It would raise the price quite a bit to over clock to 10% or more, is it worth it? Does it lower the life time overall of the computer? Anything else is greatly appreciated, but please keep in mind my budget and that i have no experience building a computer in any way, so it is very much out of the question to build my own.

Thank you.

Reply 1 : Build Help.

Also, thier is a option for EVGA Superclocked on the 560 for 18 dollars more, what does it mean and is it worth it?

Also, the 460 has this upgrade, -Palit Sonic Platinum 800MHz Core Powered by NVIDIA, for 20 dollars more,