XNA and Video Safe Area

I just realized something. Coding for the 360 and PC at the same time isn't only sweet - as I've just realized when remembering that there's something called safe area in TV editing. Here's a simple way to display these areas - and now to find a good way to handle them both on PCs and TVs. I guess I'll bring the notion of safe areas into my base canvas class, which is a wrapper class around the direct3d device I'm planning on designing to reduce the amount of re-coding basic gfx stuff.