We've got this one from Ikea
http://www.ikea.com/ca/en/catalog/products/10147737
It worked out really well, it's on it's side and has room for the PVR, DVD recorder, Wii, PS2, stereo (hook the computer up to the tv and stereo to watch movies and stuff) and storage for DVDs and games.
You can also buy inserts for a couple of the spaces if you want drawer or cabinet space.
http://www.ikea.com/ca/en/catalog/products/10115760
http://www.ikea.com/ca/en/catalog/products/90115756