Newest consoles I have are the Wii, the original XBox, and the 3DS...don't really see much incentive to upgrade (though some of the WiiU exclusives look nice), especially when most of the 360 games are way cheaper on Steam.
Depending on your computer, it might be dirt cheap to upgrade it, rather than buying an entirely new tower (or whatever kids use these days). Certainly much cheaper than buying a PS3 (though I suppose maybe the used ones can be had for a decent price). You could probably get away with just buying a new video card, if your motherboard supports PCIe.
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I'll brave the storm to come, for it surely looks like rain...