I'm downsizing my massive Ikea Galant desk to a less massive Galant desk and looking to bring the PC in my sig up to my desktop from the floor. I'd like to move everything into a smaller case with a window so I can get excited every time I look at it. Considering a Corsair Carbide Air 240. I'll need to either find a used Z77 micro ATX board or upgrade to something current. Does it make sense to bother upgrading from an i5 3570K that's been running flawlessly at 4.2GHz? Also planning to upgrade to much larger SSD when Windows 10 drops and a new video card as well.