yeah, shipping usually runs about 40 dollars or so if i remember right.
Although if you order enough fish, and your LFS prices are high.. then it can def. save you money. Another good thing about online fish ordering is that you have a lot larger selection that you would at most LFS.
Only real cons i can think of are that you dont actually get to see the fish you are purchasing until its on your door step, and the fact that shipping does cost a bit, and you have to be ready to acclimate the fish right when they arrive.
HTH
Jay