I want to run two extra sceens from my laptop

I'm new to forums and to Major Geeks, I want to know if it's possible to run two more sceens from my laptop as a desktop extension. I can run one extra ATM an 18.5" LCD TV via a VGA cable or a 50" Plasma TV via a HDMI cable. I can run a combination of any two of three screens.
So that's where i'm at now but I would like to run all three as extensions of my desktop interface.

My System/
Toshiba Satelite: PJ750/02J001
OS: Windows 7 64 bit
Processor: Intel (R) Core (TM) i7-2630QM CPU @ 2.00 GHz - 2.00 GHz
RAM: 4 GB
Graphics Card: NVIDIA GeForce GT 540M 1 GB

I'm not 100% but i think that the laptops shared graphics is running the show.!!!
Thanks in advance

 

You'll need a video card to do it and since it is a laptop you'll need a USB.. like
http://www.newegg.com/Product/Product.aspx?Item=N82E16812225007
for example.

 

I am aware of this now and have done some homework on a few products in relaition to USB - VGA. However I really would like to utilize the HDMI as i would require sound when Watching movies on the 50" through my media player.

 

OK so I accept the fact i'll have to manually change the screens when i wish to use my media player through my 50" panel but why is no sound getting to it when i do.???? remember it's running via a HDMI cable.....and when i maximize the windows media center window in any of the screens my mouse will no longer move back to my laptop display.????

 

There are hdmi to usb too
http://www.walmart.com/search/searc...=wmtlabs&wl0=b&wl1=g&wl2=&wl3=7551438867&wl4=

Did you set the hdmi in your sound devices in the control panel?