for an fx6300 and r9 260x
for budget, get the EVGA 500b. If you are looking for a higher efficiency unit, perhaps with modularity, then I can give you plenty more options.
Other options off the top of my head:
XFX TS 550w
Any Seasonic unit
Can't go wrong with Seasonic
XFX TS 550w +1, wont get any better than that for the price
any Seasonic or XFX or Corsair that meets 80+ Bronze Cert. or better
for $5 bucks more get fully modular
XFX XTR 550W 80+ Gold Certified Fully-Modular ATX Power Supply
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151095 buy this right now its 49 bucks shell shocker sale on newegg.
Thanks for the help guys. I just finished my build. Ill be posting a post build question on the forum...