Modify part for machining - add bridges?

[john_t_h]

Ok, so I've designed my part and I was pretty happy with myself

Then I started to think how I could machine this part out of a block of aluminum. After a few questions to those with far more knowledge than me, I guess I need to add in some bridges.

I found this image which is something like I need to achieve, except I need to add bridges

How do I add material around my part and a few bridges so I can setup the toolpaths?

I'm using SW2007

[john_t_h]

I think I worked it out. Am I on the right track?