Finair14 :
Hello
I am building a mini itx gaming build with an asus gtx 770 and an intel core i5 4670k. i Plan to overclock and would like to include case lights, fans and will have a ssd ad hdd
thanks
If no SLI, then 600w is right on! Go 650w or 700w if you want to have a TON of room, and I must emphasize it would be overkill.
P.S. I must advise you to go with Micro Atx instead. It is 90% as small overall with WAY more options and a cheaper price. I can Crossfire two 7970's in my mini build! Also a 280X would be a better GPU choice (IMO)...