Heavy books on C++ and such used for anchoring
Cleaning is an issue with what to use. NO soap. You can use chlorine but every bit must be gone before it is used (a bottle of dechlorinator should have been on my list of what to get so add it to your next month's shopping list). Household sponges are fine if they do not have soap (some of ours come with soap in the sponge) and have never been used. Any of the microfiber type cleaning cloths (again, not used for household cleaning) are fine. Your yellow scraper may be useful for where you can get to things. For the skimmer, clean out the main cylinder as best you can and don't worry about it. The top section will need cleaning on a semi-regular basis as it collects "skim mate" (protein that looks like green stinky mud) but the main cylinder is not an often cleaned item (others may argue a bit but I think they actually do better if you don't clean the primary cylinder - after this initial cleaning - since it is out of the water you do want to clean it this time). Acrylic surfaces should not be cleaned with abrasives (in your case, I think that is the skimmer and the sump only, I have several acrylic tanks) or metal scrapers. The sump is less of a concern and you may not care if it is scratched up from cleaning but it will become opaque with scratches if you use a metal scraper that is designed for glass.
You have food for the corals in your collection of included items, check the labels but feed
very sparingly. Lighting is the big issue as most are photosynthetic. If you can't rig the light fixture to be on 8 hours (12 is better) then see if you can at least expose them to sun light most of the day.
Videos, there are many about the ocean that are excellent but I don't think I have ever watched one about aquariums. One that comes to mind is
Octopus Volcano. I know it is on the net in both German and English and I will try to find the recent English link someone mentioned. I thought the German version was better than what was on TV here but the latest report was that the English version on the net was very good (I don't understand more than 10 words in German but had seen it in English first and could follow). Anything about octopuse from National Geographic tends to be good. We have off and on attempted to keep a list but the effort needs revitializing.
Some of the most interesting underwater videos are taken by divers. There is a
very quick video of the well known cephalopod reasearchers shot (Roger Hanlon) that shows a terrific sequence of camoflauge behavior. There is a very sad diver short video with a
cuttlefish and an a octopus (warning, not a happy ending). There are two recent videos from one of out members. The
first is very sad (execllent catch on film though) but
the second is a nice composite of his interaction with a group of octopuses he discovered last year.
You will also find a lot of interesting interaction short videos by members posted in the individual animal journals.
I'll reference one of my last ones (Puddles was a macropus of some sort, nocturnal but was nearing the end and at a point that light was no longer a major run and hide issue when I took the video) but looking through the jounals and watching members videos would fill a lot of interesting time. The Journals and Photos section has stickies at the top titled List of Our Octopuese 2010, 2009 etc. The list contains links to the journals and names the species and you can learn a lot from reading through them if you have not already spent some time there.