Skilled HTML types, please.

If you know anything about this stuff, take a look down the side bar. Notice the "News and Commentary" section. What I WANT is to have many more links in there. I also want them to each have the little arrow thing pointing to them like in the "Archives" and "Previous Posts" sections. Also, I want the little dotted lines in between. If I add one more the next one will be too far down and to the left a little. The side bar box does not increase in size automatically to accomodate.