I also recommend getting a Radioshack SPL meter and a long unbalanced cable ( one that can extend from the back of the G61 to the primary listening position ) to use for setting your surround levels and for the MRC ( room correction ) setup. You can choose not to configure the room correction but I find it makes a significant difference.

558.2 amp, Meridian A500 speakers, M2500 sub, Director & Explorer DACs