You might enjoy some of the flat panel speakers by monsoon, they are well priced, like the planar 14s I think, your best bet would be to go to a store and listen to a few and see what you like.

I owned klipsch 4.1s for 2 years, great lil speakers, but MUCH better to be had out there. This year I upgraded my overall sound system with some sennhesier HD590 headphones, a nice 2 channel paradigm setup (cost me about $2k), but as far as multimedia speakers go, klipsch make the best, to go a notch up from klipsch speakers for your computer, say getting some lil monitor speakers your looking at $600-1000 to start. Worth it though I could never go back to listening to music through cheap multimedia speakers.