I would Highly suggest you just get the FX8320 since it ios cheaper and I have not seen one that will not overclock to a FX8350's speed. Also I highly suggest you get a Aftermarket CPU cooler like the CoolerMaster Hyper 212 EVO for $34 that has a 5 star rating with over 2600 newegg reviews. Also you can add a additional 120mm fan for push pull operation that will allow for better cooling at high fan speeds for max cooling....or low rpm quiet fan speeds if fan noise bothers you 2 120mm fans at low RPM's like 800rpm will cool better then a single fan at 1200rpm thus cooling the same with less noise. It also come with the fan bracket for the extra fan you must provide.
Cooler link http://www.newegg.com/Product/Product.a ... -_-Product
As for a PSU I would go with Corsairs CX750 watt PSU that has a nice overhead of voltage since your CPU when overclocked can pull 200+ watts on its own with a crazy 4.7GHZ oc along with that asus motherboard being SLI and Crossfire Capable with the Corsair CX750 on sale now at $59.99 after $20.00 rebate card and having all its power on one 12volt rail rated @62Amps you would be hard pressed to find another PSU with that kinda power on a single 12 volt rail for that low of a price.
Also I do not care what anyone says I would rather have plenty of extra voltage in case I need it down the road + I believe PSU's last longer the less they are stressed. PSU link with $20 rebate card http://www.newegg.com/Product/Product.a ... 6817139040
Just like when I built my signature 2600k gaming rig before I got my power hungry EVGA GTX770 4gb classified cards in SLI that need 2 8 pin power connectors for each card I had 2 EVGA GTX 560 TI cards in SLI that used a good deal less then my new 770's but I powered my system well over 3 years ago with a 850 watt corsair TX850 with a 72 amp 12 volt rail that got glowing reviews on johnyGURU when a 650 watt PSU would have worked fine and I am sure glad I did go for 850 watts since with all the overclocks on my CPU, Video cards, 8 120mm fans, 1 200mm fan, a SSD, 5xHDDs and all the USB stuff all over the place