Although the P5N7A-VM's stock performance would normally be more than enough for most home theater PC or basic home desktop tasks, overclocking could be beneficial. The P5N7A-VM offers very basic overclocking functionality, but it was more than enough to allow me to overclock the Q6600 to 3.0 GHz (9x333) with a stock Intel heatsink.
http://www.bigbruin.com/2009/asusp5n7a_1