You should be able to run all that; the 5670 uses a Max of 75w being a pcie only card and I can't imagine the rest of your system using over 150w. Gaming..... light gaming and don't count on a high resolution and you should be OK. If your psu fails its always good to upgrade but should work for now
what would your budget be for an upgrade?
You will be fine with the setup you previously stated with that psu. The only issue I'd see is it isn't a reputable brand so it might not have a true 400w output but in your case you'd need 230w at most so you're good
Its op's choice to not upgrade, I would recommend getting a cx430 or 380w ew..... but he wants to know if it will run on that psu... and it will. I'm sure after the things we've covered he is well aware that he needs a reputable brand but in the meantime it should be able to supply that low amount of power