Hey guys, thank you guys for all the feed back. I need your help as these two builds come along.
Backstory:
I've been dating my girlfriend for over 5 years. We moved in together a little over 2 years ago and ever since, she fell in love with my PC. For over a year now my girlfriend had been hinting at wanting her own, but always turned down the offer because she thought it would cost thousands of dollars (Well now my budget appears to have broken it 
). Her birthday is in August, so I really want this to be super-extra special.
She recently gave me the green light to build her PC after watching some E3 2015 trailers and I totally freaking said YES!!! At first she didn't think I would go along with it. She didn't want me to spend my money (she wanted to buy some of her parts), but then we started receiving her PC parts and each time she gets happier and happier. Now, since her build is coming along faster than anticipated (my prediction was late August), I decided to increase her budget.
Girlfriend's Old PC Build:
CPU: Intel Core i5 4460
MOBO: Asrock H97 Pro4
RAM: Corsair Vengeance 2x4GB 1600MHz
GPU: (Donated) MSI R9 270X 2GB
PSU: (Donated) Thermaltake TR2 600W
Storage: 250GB SSD
Case: NZXT Source 210 Elite
Budget: $600
NOTE: I was planning on donating her my PSU and GPU.
Girlfriend's NEW PC Build: Green = Have/Purchased Red = Not Have/Selected
CPU: Intel Core i5 4460
MOBO: Asrock H97 Pro4
RAM: Corsair Vengeance 2x4GB 1600MHz
GPU: MSI R9 390 8GB
PSU: EVGA SuperNova 750W 80+ Bronze
Storage: 250GB SSD
Case: NZXT S340 Matte Black/Blue
Budget: $800
My PC UPGRADE: Green = Own Red = Selected for UPGRADE
CPU: Intel Core i5 4670K
MOBO: MSI Z87 (Forgot Name)
RAM: Kingston Fury HyperX Blue 2x4GB 1600MHz
GPU: MSI R9 390 8GB
PSU: EVGA SuperNova 750W 80+ Bronze
Storage: WD 2TB HDD
Case: NZXT S340 Matte Black/Red
Things I still need:
I need to get custom PSU cables, since my build will be black and red and hers will be black and green, I need green and red PSU cables. I would also love to find a nice water cooler for our CPUs that is LED backlit with changeable colors, green and red. Alternatively two different but similar water coolers, one being green backlit and the other red. Can someone please tell me where to buy such cables and/or link to water cooler? Thank you!
Peripherals needed:
The only logical peripherals for my girlfriend's build are Razer, but the older non-RGB keyboards and mice. Most likely Razer Blackwidow 2013/2014 with blue or green switches, Razer Naga mouse, and Razer Kraken 7.1 headset.
During late July to beginning of August, right before fall semester(August 27th), I can crank up my budget to around $400 per week.