I am having some instability when gaming and have a generic 300w psu. If I buy a new PSU I want it to be able to handle the new more powerful cpu's and Vid cards coming out in the nex few years. I doubt I will be using 2 hard drives probably a couple optical drives 1 HD and all the regular stuff but probably a very good Vid card and CPU....so what do I need ?? a name brand 360W maybe 430?..please help!!