My Dedicated Emulator PC build

I have decided to build myself a dedicated emulator PC, to have no other objective but to emulate gaming consoles. I'm doing this to get some experience in building PC's, and through research have a better understanding of whats out there and how it works together.

I have decided on a 400 dollar budget but quickly realized that would not be enough so I raised my budget to 500-600.

The parts that i have purchased so far are:
- i5-4670K cpu
- EVGA GeForce GTX 750 Ti 2GB Video Card

The parts I'm planing on purchasing:
- Cooler Master Elite 130

Things i would like to emulate:
-Nintendo 64
-Nintendo GameCube
-Sega Dreamcast
-Sony PlayStation
-Sony PlayStation 2
-Nintendo SNES
-Nintendo NES

Everything else I'm pretty much unsure about. The reason I'm creating this is to maybe help someone out if there planing on building something like this but also receive a ton of help and suggestions. Thanks!