Please clarify.

dose each monitors both res 800/600 +800/600= 2800

I will attempt to deduce what you mean.

If you have two monitor each with a resolution of 800 x 600, each monitor has a total of 480000 pixels.

Video cards on the market now days have several different modes. If we are to max each monitor, then it will either be set to clone or to extend desktop. In either case, you will have 960000 pixels total. I assume you would extend the desktop.

800x600 is a 4:3 aspect ratio. If you extend your desktop with them sitting in their normal positions side by side, then you will have a desktop with an aspect ratio of 40:27(8:3).

On my hometheater PC, I have a hotkey setup that toggles from my main monitor to my big screen whenever I play movies. The rig I'm using now has one screen setup vertically so I can read or type on one screen and play videos on the other. If I ever get around to catching up on the new web standards HTML5 and CSS3 I might use it for web development.

What kind of setup are you going for?

what if my montiors is runing at 1440/900 for each is it 1080p when its like that

No.
http://hometheater.about.com/od/televisionbasics/qt/1080ivs1080p.htm <---Click
http://en.wikipedia.org/wiki/Aspect_ratio_(image) <---Click
http://en.wikipedia.org/wiki/1080p <---Click

what woud i have both kunbind

If you set both of them vertically you'd have 1800 x 2880. With it set to extend desktop and drag your window across both screens, you could effectively have something that is capable of 1080p. However, there will be a vertical bar that splits your screen in half.

Three Monitors in a vertical orientation: