Since you are getting a sub get the M22's, an entry level receiver of your choice, refurb would yield slightly better bang for the buck and as the others have said a sub from Parts Express or similar, BIC comes to mind for the cost conscious with still good sound.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70