All useful settings. I love the syntax high-lighting in vim and I don't think I could work half as well without it. Something to be aware of is that vim assumes you are working on a console with a light background. If your console colour scheme has a dark background you may want to add this.
It changes the syntax high-light colours to use lighter colours and making them contrast better with a dark background. You can also set it to light if you have a light console.