Help meee Please New Gpu question!

Theoreticly yes, it is enough but i would recommend at least 500W and also keep in mind that there are other components taking the power. Also advise to buy a good one and not upgrade it so often as it will save money, but then its got to be good one.
 
I think you should get a new PSU.
Spare some money and go for a 600W PSU, you won't regret it and it will least a lot and it will come handy if you plan on upgrading your config in the future.

It doesn't have to be an expensive one nor to be stronger than 600W (for your current configuration). Here is a guide of buying a good new PSU:
http://www.tomshardware.co.uk/answers/id-1804779/power-supply-unit-tier-list.html

Hope I helped, regards :)
 


I got a gtx 760 And a EVGA 600w Psu i love it !
 


Awesome!! You will be able to do some good gaming. Enjoy!!!