Hey Darian, welcome to our family.
Wow, you do have some decisions to make. Can you better describe the room layout (size) and where the TV is located. Is it wall mounted or sitting on a TV stand? My folks have a Sharp LCD, that is sitting on a small TV stand and then they have bookshelf speakers to the left and right.
I don't think the speakers that come with these LCD's can ever recreate the same sound experience that true bookshelf or floorstanding speakers will give you. You need seperation to get the best experience. Also, you'll need a receiver to drive any speakers you get, as something has to drive the surrounds/sub etc...
You may want to consider turning off the Sharp speakers in the tv menu and just getting a receiver and speakers now. You can live without surround as most receivers have a simulation mode that will use the left/right speakers to virtually simulate surrounds. Now it will never be as good as actually having Left/Right surrounds for a 5.1 system.
Also keep in mind that you will have to run wiring around the room to connect all the speakers/receiver. If your budget is $1.5-2K there are many Axiom 5.1 systems that fall below that figure and would allow enough for a receiver as well. You could also buy from the Factory Outlet as most of us do and get the 10% discount and if you buy 5 or more speakers as well, Axiom gives you 5% in addition.
Once you give us your room sized it will be better for us to give you options, however, below is a few links from Axiom's website. Also, they offer a variety of colors to compliment most rooms. One other thing, you can take the online "Home Theater Wizzard" , answer a few questions and it will give you some suggestions.
http://www.axiomaudio.com/htw/htw.html
http://www.axiomaudio.com/epicmidi_125main.html
http://www.axiomaudio.com/epicmidi_175main.html
http://www.axiomaudio.com/epicmaster_175main.html
http://www.axiomaudio.com/epicmaster_350main.html
http://www.axiomaudio.com/epicgrandmaster_175main.html
Factory Outlet
Talk to ya later...
