`Is there any good graphics cards you would recommend that would run with out upgrading my psu? Sorry im a bit of a pc noob
Upgrading your PSU is easy. Just get the one I suggested and then take your pick of any single-plug GPU for gaming. And when installing make sure you keep track of which connections go where.
I don't forsee PCI 3.0/2.1 cards being an issue, they are all backwards-compatible.