Best 5.1 speaker system out of these

[Vaanish]

Okay, I am looking to get some 5.1 spakers- tired of these crappy Dell speakers...

Out of these, which offers the best sound quality and bass for the price?

Buy Logitech X-540 5.1 Surround Sound Speakers 970223-0120 from CCL - Online Retailer of the Year 2006

Buy Philips MMS460 5.1 Speakers MMS460 from CCL - Online Retailer of the Year 2006

Buy Philips MMS460 5.1 PC speakers MMS460/05 from CCL - Online Retailer of the Year 2006

Buy Creative Inspire T6100 5.1 Speaker System 51MF4085AA001 from CCL - Online Retailer of the Year 2006

The main things that i am bothered are sound quality- as i like listenin to music, and also very good bass, due to the fact that i like dance/rap music.

Thanks for feedback.