Upgrading from Logitech X-530 to Z-2300? is it worth it? i dont care about 5.1 or 2.1 lol i just want the sound i love bass and i was more bass and i listen to music more than playing games lol also what sound card should i get from this website? http://www.trademe.co.nz i need a good sound card around $30-$50 please help me decide should i upgrade to z-2300 for more bass or should i stay with x-530? and also should i keep both or should i sell my x-530 after getting z-2300? thanks.