Suggest a 5.1

plz suggest me a 5.1. My budget is 3k+... high wattage is not required but sound must be clear and free from distortion...

plz replay........ is iball 5.1 speakers are good???

My List:
Creative T6100
Creative T6200
Something from F&D but F6000 is too costly....
iBall Booster 5.1 for Rs 3200

My sys config: Pentium Dual core 5400, Asus P5G41-M-LE

Is my Realtek 887 is enough or some sound is require???

Plz suggest me......