Note: If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem.
While I might note this link -> http://www.tomshardware.com/2007/12/03/best_graphics_card/ you left out far too much detail for me to note much else.
I'm looking into upgrading the Graphics Card on my desktop. (Nothing cutting edge, just something where I could play an MMO game without serious lag.) I have noticed that some graphics cards have seperate memory and even a seperate fan for cooling. Would I need to plug in the Graphics card to a second location on the motherboard to operate the fan on the graphics card, or would just plugging the card into the graphic card slot take care of that?