Jessica, in my bedroom i have speakers that are similar to the M2's and a center that is comparable to the VP-100. I also have an 8inch JBL sub. My bedroom is about 10X10. You did not mention what the size of your room is. For the size of my room this setup works wonderful for listening to stereo music while reading. the 8inch subwoofer is a good match for my size of room.
In all honestly. if your room is about the size of mine. I would just buy a pair of M22's and not worry about a center or surrounds.. I usually don't even use the center channel in my room, due to the relatively small size.
hope this helps
