Tunze streams are no longer the only option for stream style flow... Tunze came out with a nanostream, and other companies have come out with stream style pumps such as the Seio and the Koralia, and you can now purchase "retrofit" modification kits to turn a maxijet into a high flow stream style pump.
Phosphate removal media (ferric oxide): phosban, rowaphos, and others, run in a reverse flow media reactor.
Some skimmers have become so effective that it is now possible to overfilter a tank and run into LOW nutrient issues.
T5 lighting is arguably as strong as MH, and many people are using it. There are also LED fixtures available which are reported to work well, but they are very expensive.