Yet another multiscreen question..

Go to nview desktop menu options, Make sure individual setting is checked make sure you are using muilt display, not clone, also in these options you can make what apps to open on what screen and custom a desktop and save the desktop for what display.

Almost forgot, make sure you snap edges to 100 pixels this prevents some problems with the screen edges getting out of wack also unlock the taskbar you can slide it to the screen you want to use while playing a game and the other using the net. Great feature is throw option with this you can give a window a little push with the mouse and watch it go but this leads with off screen windows, half and half ,if its not tossed right.

with individual setting this allow each application and desktop to use the same hardware setting for each desktop, of course this has it limits but for me I can play bf and use the other screen, why this Is I don't know but I assume because individual setting allows the control of what screen and the pointer would be seperate for each monitor or desktop. bad gramer sry bout that. anther thing is in desktop global options make sure you check the use different resoultions for each desk top

yes there is a macron setting or hot key actually the nview options has lots to configure but once it is for each desktop it does work awsome

I cannot answer the SLI question I guess you will have to try and see if it works I'm assuming this would work with sli surely gpu 1 would be the best place to start, key command are in the nview options or desktop manager like the pic I gave, there you can assign key commands, to switch desktops you can slide your mouse across the screen to get to the other monitor and its desktop icons and when playing games use hotkeys and othergames just sliding the mouse accross the screen outer area this bring the pointer to the other screen.