Does any one know of a place where i can get a vga splitter? i have a mac mini and two displays. i want to use both displays for my mini. obviously i can't change my graphics card (best buy guy!!!!) I just want to split the port in 2
Unfortunately you can't just split VGA with a dongle like you are describing, there wouldn't be enough "juice" in the signal to push out the image to both monitors successfully. You need an amplifier of some sort to add power to the signal. Something like this would work for what you are describing:
In that case, if you want to you use the monitors for different things, you need something like Matrox DualHead2Go or an USB graphics card.
The DualHead2Go require both monitors to run the same resolution. An USB graphics card should allow for different resolutions, but it certainly won't be fast. It might do for word processing or web surfing, I haven't tested one at all, but I at least think I saw one with OS X drivers somewhere.
In other words, it is at least theoretically possible to run dual or triple monitors, but may not be practical.