Monitor Speakers. Hafler

Hi .. I have had Hafler monitor speakers for a long time. They are allegedly flat response. I guess thats good.   Yeah I know in theory, you tweak your sound on flat monitors , but then you play it back on your car sound system, your ipod buds, your headphones , everybody's stereo etc.

   Well I know when I hear a really good sound that I like and when I'm listening to these monitors it doesn't seem like I get to hear that sound.  So I'm thinking of using user end sattelites and subwoofer.   I just want to hear better music.   Anybody have a good idea on what kind of sattelites and subwoofer you like that has punchy bass and some crisp highs?
thanks


http://www.youtube.com/watch?v=TI3_ykb-HtQ