I am getting a new Dell PC with following Configuration & need Help in choosing a Video Card. I am going to use 55 inch LED TV as my monitor so I can do regular computing as well as use it as a Home Theater PC. I am not going to use it for gaming at all. Most of my applications are stocks & Commodities charting graphics applications & do require intense computing power & Powerful CPUs & lots of RAM is recommended. Most of the people use multi monitors, upto 12 monitors. But where I am located, I can't get those multimonitor cards & if I import them, then there is no support for it or replacement possible. So I chose the route of 55 inch TV as a monitor in which I can bring up 8 charts in one screen instead of 8 monitors. Intel Core i-7 2600 Sandy Bridge ( 3.4 GHz ) Processor 8 GB DDR3 SDRAM 1333 MHz Windows -7 Ultimate ( 64 bit ) 500 GB Sata 3.0Gb/s HDD Creative PCI Express Sound Blaster X-Fi™ Xtreme Audio Hauppauge® WinTV-HVR-1200 Hybrid Analog/Digital TV Tuner I have to choose one of the following 2 video cards : 1 GB NVIDIA® GeForce® GT420 as default video card. 1 GB ATI® Radeon™ HD5770 Graphics Card for Extra $ 100.00 Should I pay $ 100.00 extra for Radeon HD 5770 ? If yes, What will it do that NVIDIA won't ? Thank You.