Buying a new Gaming PC

[Professor S]

While I appreciate all of the advice, you people are too fucking complicated.

How about this: I post the PCs I'm interested in, you you techno-people rate them in terms of value and running most games at max settings at 1920x1080 on the 23in monitor. Keep in mind, I need this to run MS Office for work as well.

Here is the one I'm leaning towards:

http://www.newegg.com/Product/Produc...82E16883229253

Here is another I'm interest in with a better processor:

http://www.newegg.com/Product/Produc...82E16883229262

Does the i5 2500k processor enhance gaming on any significant level, or will the GPU and RAM do the real work?