ASUS Desktop good enough?

[TheCapitalFalcon]

I think I would need a computer that has some room to upgrade the components:

http://www.newegg.com/Product/Product.aspx?Item=N82E16883249007

http://www.newegg.com/Product/Product.aspx?Item=N82E16824236100

http://www.newegg.com/Product/Product.aspx?Item=N82E16822178115

Same amount of memory, same amount of hard drive space, HD Monitor, CPU with insignificantly worse performance (http://www.cpu-world.com/Compare/440/Intel_Core_i7_i7-3770_vs_Intel_Core_i7_i7-4770.html), interchangeable components, external hard drive for better/more storage (Internal for programs, emulators, etc.; External for Work and other irreplaceable files), better GPU, better PSU, better motherboard, better warranties, pre-built, and all of it being cheaper than the DIY ($1,087.56).

Oh, by better I mean better than the Optiplex, not the DIY.

Also, I have a Wii actually, so if I REALLY wanted to play those games I guess I could just play those couple that I wouldn't be able to play on the emulator on the actual consoles, as long as I can play all the other games I listed in the performances I described than I'll be good with it.