Thanks again for the advice everyone! That is why I am here.
Pasfur and Ajmckay:
I posted that thread on November 6, although the live rock and live sand was in there since about October 10. The pictures were from the day after I added the rock. I was browsing the forum for a while and then decided to finally post.
It seems I am getting advice from all over the place so I'll probably be checking this thread more often.
I am headed to the store tomorrow as I need more salt for water changes so I will research and check out the protien skimmers as well. Do you think a sump would be benefical as well. I have an extra tank and a friend that is handy in building things like this.
As for now all the fish are doing really well. As for the yellow tang, he actually is really friendly towards the other fish and doesn't bother them at all. As for the size of the tank, I knew I would get yelled at on the forum for this. I've seen yellow tangs do well for years in an aquarium the same size as mine, (not saying that mine will be okay) so that is why I went for it. If I feel it is not working for him though, I have options to give him to a willing owner who has a suitable environment, although it would be sad as he is my favorite.
Overall, I think I got to excited and jumped into everything too quickly. Luckily, my water quality and fish are still doing okay. I'm going to slow down now though and maybe add a little more live rock, but other than that, just let my aquarium run with the fish I have in there for now.
Thanks for the advice everyone as it really helps and I will continue to check in.