The mod I've seen that I want to do is using square tubing. It joins the front and rear subframes directly with a piece that goes through the floor pans. The thing I like best about it is that your ground clearance isn't screwed up.
I currently have some Global West connectors. They drag on speed bumps and road irregularities here and there. I don't want to raise up the car, so I will be removing them eventually.
Tonight when I get home I'll see if I can find some links to pictures of it.