I have VS in my left monitor and the GUI/running window in the right. However, if you want to have to code tabs open on each monitor, you could use UltraMon's option to expand a window across both monitors, then drag a code page over such that it puts up a divider. Then, you align that divider with the break in your monitors.
I've done that before, just to test it out. It's not a bad setup.