speaker suggestions with mcintosh gear

Last week I auditioned dynaudio speakers being powered by all Naim gear. I was really tooken by the sound and how exact and un mashed together. Is this possible to achieve with my Mc207 and Mc C45? I was wondering if any one had suggestions on speaker manufacturer to put an ear to. I am now playing B&W802 Nautilus. But I feel I dont have enough power. I listen to alot of 80s 90s rock. I also want to eventually return to a theater setup to play my sacds. I run everything through a Marantz 9500. I like to get LOUD DETAILED clear and very defined. but I really like to keep my Mc gear unless it is going to be a hard goal to accomplish. I would like to spend less than 15000.00 when all said and done. Meaning sub center fronts and rears. Thanks in advance.