I could not agree more with dirt!!!! Just take your time and enjoy this hobby.

I would do a few things right now in the game:
I would get move live rock at least another 30-40 lbs at least. this dramatically helps filter the water.
I would invest in a protein skimmer like flame said. your powerfilter just do not remove as much as is needed.
I would start researching what you want to keep the reason for this is that your very very limited on the stock you can keep with your lights.
start researching lighting also. there are some AMAZING people in here that know tons of info on lighting.

and just take your time and research. This place will be your best friend for the next 3 to 4 months while your cycling your tank. dont be afraid to ask questions. We are here to help you every step of the way