not to be a troll or an @ss in general, but if you're willing to spend $400 on speakers, do yourselves a favor and pick up an old receiver and a pair of good bookshelf speakers.
While they won't offer surround sound, they'll sound so much better for music and you can always add speakers to it as you save up some coin.
My friend picked up a used kenwood 405 receiver for $100 and a pair of paradigm titans for $230 and really, they sound great. He ended up upgrading the receiver to a denon 1802 and adding speakers up to a 5.1 system and it's pretty deadly.
Those high priced klipsch and logitech pc speaker setups have nowhere to go other than replacement and a new pair of high priced speakers. When I first bought my titans, I didn't think they sounded much better than my altec lansing acs-48s, but after using them for a while, I can't go back to computer speakers without noticing all the deficiencies in the sound. The bass is generally crap (you will learn this after hearing a good sub) and the sound just muffled compared to good speakers (paradigm, axiom, rockets, mirage, energy, some polk etc).
Of course, some people want their 5.1 sound regardless and that's fine. I just know I could never go back to pc speakers. But for similar amounts of money, don't buy into surround hype and consider quality vs quantity of sound.