Is this an okay arrangement for my DVR? (See picture) On Top is a Sony BDP-S570 Blu-Ray player. On the bottom, is the 722 DVR, and to the left is a Sherwood 2 channel Audio receiver. What with how heavy the DVR is, do you think it'd be better to put the DVR on top of the Blu-Ray player, or leave it like it is? Many thanks!