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#11
karlog, what's your budget for upgrades?
I'd get a 700W 80Plus Bronze rated PSU or better (so you can likely still use on a newer build if you go that route sooner rather than later) video card wise, Nvidia 660 or Radeon 7850 is gamer starting point cards, unless really on a low budget, if that's the case, whichever best previous gen nvidia or radeon you can afford.
2nd digit in the model model # is more important than the first, higher is better, that 7300 is a bare bones card even at time of release.
Brands for PSU rec'd: Antec, SilverStone, Seasonic, Corsair, and Thermaltake. Read reviews though until satisfied.