What wattage PSU do i need

Hardware Hub PSU
1

here is my build 

CPU- AMD FX 6300

GPU- R9 285

MOB- MSI 970 GAMING

HDD- WD 1TB HDD (may get an ssd later on as well)

8GB hyper x fury ram (2x 4gb sticks) 

dvd drive 

would like to have some led lights 

max of about 4 things connected to USB at a time (mouse, keyboard, headset and possibly phone)

I was looking at some 600w psu's but think i may need a bit more power 

what do you think?? 

2

Try this badboy out : http://coolermaster.outervision.com/

500-600w sounds about right anyway

3

5-600w would be fine. If you want growing room maybe go for a 750w but not really needed

4

A 450w will work just fine but to have headroom get a 500

5

600w is probably double what your system's gonna draw. It's safe.

My system with an overclocked i5 and crossfire 7970/7950 draws 551w at peak in Unigine Valley. With the 7950 taken out and running just one 7970, my usage, while gaming, is about 320w.

EDIT: That 320w reading is from my power strip, not just my computer itself. That reading includes my 3 monitors and speakers, subs, etc. So, it's probably well under 300w that's being drawn by my PSU.

6

thanks everyone for the very helpful input i think i will go for a 500w psu  

thank you Brad94 for the helpful website link.

Jason for putting it all in prospective.

Admiral and 2111 for the input