Budget Speakers for my 40 inch Television around 5000.

Few months ago, i purchased my first big screen LED- 40 Inch Samsung D5500. Everything was great, except for the sound which sucked big time. I connected my computer speakers, Creative SBS A300 immediately to check the difference, it was awesome. I never thought i would require sound system for my television since i never was much interested in having big Home Theater. But it seems i will need sound solution for my television since sound coming from my TV just doesn't match the grandeur of its size.

I know nothing about sound systems, I am looking for a budget sound system for my television, its wall mounted in my drawing room of 17 X 10 feet.