Enthusiast PC Devil’s Canyon unlocked i7 Monster for under $1000
Intel i7 multiplier-unlocked, Haswell chip is hands down the best cpu on the market. EVGA GeForce GTX 970 4GB Superclocked video card sill a very strong video card for the money, even tho the memory issues.
With the addition of an SSD over the Budget Steam Box, you will now have faster load times and better performance from the OS on Solid State SSD.
EVGA SuperNova 750 PSW is overkill for the 330 Watt system but leave you plenty of room to run a second 970 for SLI
Here is my Budget Steam Machine https://pcpartpicker.com/guide/HbKH99/basic-steam-machine-march-2015
Notes: Two Prices are overrides because Micro Center has them combo deals on the motherboard and cpu and the SSD isn't listed in parts picker but there websites lists it
$10.00 mail-in rebate
$20.00 mail-in rebate