The i5 2500K is pretty multi-purpose. It works well in gaming, editing (though the i7 is recommended for this because of it's Hyper-Threading feature), everyday tasks, and much more. Since it is a K model, it has a much less limited multiplier, which allows for higher and easier overclocking (stock cooler should allow a good 4.0GHz; maybe more, but I wouldn't recommend that).
Do you happen to live nearby a Microcenter? They have significantly lower prices on their i5 2500Ks (but about $40 to $50), and a price cut if you buy a MoBo with it.