You have two main options here:
You expressed an urgent need to get a Home Theater sound system to match your new TV - while this is great, it is the quick fix method, and is generally the least desirable in terms of overall quality.
So -
1.) Purchase a relatively inexpensive HTIB kit that is an all-in-one deal, but you will sacrifice quality of both your speakers and your sub (which is the most important aspect of your listening pleasure). This actually puts you at a disadvantage. HTIB systems are generally not recommended here as such.
2.) Do as suggested above and with what money you have get a decent receiver w/ some great bookshelves for the money you have available now, and wait and save up for the remainder of the system over time. You will get far better enjoyment out of it, despite having to wait a little longer, knowing your money was far better spent on quality items. This gives you plenty of time to research, demo, audition, and compare prices rather than just jumping headlong into something that will only serve to leave you dissatisfied in the future.
My advice is employ some patience and slow your horses down a bit.

That new TV isn't going anywhere soon I presume, and if you really want to give it the compliment it deserves, couple it with a real system, not just some HTIB "get me by for now" kit.
