ThatNerdyGiant :
I am getting a new power supply because my old 500w is suitable for my new upcoming build
It needs to be able to power:
2 r9 280x's
4790k
Msi gaming 5 mb
Samsung evo 840 ssd
Western Digital Blue 1 TB HDD
4x4 16gb gskill sniper ram
Preferably modular and red/black
How much do you want to spend, Do you plan any upgrades and do you plan to overclock?
I would recommend a 1200Watt or higher to be safe and allow for additions to your PC -
http://www.corsair.com/en-au/ax1200i-digital-atx-power-supply-1200-watt-80-plus-platinum-certified-fully-modular-psu
Otherwise something like this - http://www.coolermaster.com/powersupply/enthusiast-v-series/v1000/
or - http://www.coolermaster.com/powersupply/enthusiast-v-series/v1200/
I wouldn't choose an important part like the PSU based on colour, Their are many good and bad brands. I have had my current Corsair AX1200 (Non i version) through 3 builds so far and has never skipped a beat.
You can look online for a Power Supply Generator and it will tell you how much you will need you might be able to get away with a smaller Size PSU..