Thanks for the comments everyone.
To address a few comments...
First, the "brightness" of those rocks won't fade, but they should get covered in coraline. The picture is overexposed unfortunately, so they're not really that bright. Also, I don't plan many corals, because this is mainly going to be a seahorse tank. That will be the focus. Secondarily, the tank will be a jawfish tank (more on that to come with the sand I get), then I might think about a mushroom rock or some zoos.
Ter, the instructions for the skimmer said not to start it up until you get livestock or live rock. That's why I turned it on, and it has pulled some nice brown water into the cup, so I think it's working. I still may adjust it, because I'm not seeing any foam in the cup now, but I think that may just be because there's not a lot to pull right now, since it is just live rock.
Also, I went back and forth between getting the Tunze Reefpack 200 and a Aquafuge w/ skimmer, and finally decided on the Tunze. I'm very glad I did. I have no doubt the Aquafuge is good, but after hooking it all up, I really think the Tunze is going to do a nice job.