I'm going suggest you start with 2 M2i and a subwoofer. These with provide good sound during the time you are in small spaces and make good surround, rear or center channels in the future. They can alos be part of a secondary system should you decide to upgrade to a deluxe surrond system later on. When you get ready for the next step get the M22s and you can use the M2s for multi-channel in whatever form you like until the desire and ability for further upgading. Ultimately they will make nice rear speakers in 7.1 setup should you decide to go that far.

Mark