Maximum PC

ivy bridge i5 3570k
samsung 830 sreies 256gb ssd
corsair tx750m psu
http://www.newegg.com/Product/Product.a ... 33-106-135
http://www.newegg.com/Product/Product.a ... 6813131837
asus gtx660TI
cooler master hyper 212 cpu cooler
nzxt phantom full tower green/black
http://www.newegg.com/Product/Product.a ... 6820148554
now my small little extras:)
logitech g9x gaming mouse
Logitech G110 keyboard
Logitech Z523 40 Watts RMS 2.1 Speaker System

You might want to look at getting a superclocked 670 which would be the best value because it would out perform a 680 and would also future proof your system a little more. If your playing games that don't have heavy physics like Boarderlands 2 or games that aren't very intensive then you can stick with the 660Ti. Here's one for $460
http://www.newegg.com/Product/Product.a ... 6814130785

Overall solid build imho. I am not able to comment on the wireless adapter and other "small little extras", but the main parts are arguably upper-tier choices for a single GPU upper-middle range gaming build.

Regarding your GTX 660 Ti, I would first ask what games you play and at what resolution and settings. That information (along with your budget of course) will help you best determine the GPU you need/want. In case you are not familiar with it, here is a good bench of the GTX 660 Ti:
http://www.anandtech.com/bench/Product/647

I would also suggest going with the GTX 670 over the 660Ti. You shouldn't spend $460 on one tho. Get the gigabyte version for $399 which is overclocked and outperforms the GTX 680.