How to build a corner shelf?

I would like to build corner shelves that would be large enough and sturdy enough to support my game consoles (Ps3, Gamecube, Xbox and such) and my DVD player. Would it be a good idea to try and leave a little space in the corner to run the wires through? What kind of wood can I use and are ordinary brakets... show more I would like to build corner shelves that would be large enough and sturdy enough to support my game consoles (Ps3, Gamecube, Xbox and such) and my DVD player.

Would it be a good idea to try and leave a little space in the corner to run the wires through?

What kind of wood can I use and are ordinary brakets strong enough?

Ive never done wood work before, so I have no idea what Im doing so far...
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