Transfering tanks.

[doch]

Due to my mild OCD, I went with all new RO water. Is this needed? Probably not... but it makes me feel better knowing that the whole tank is RO.

This is what I would do, in this kind of order... make adjustments as needed.

Rinse the new sand
Fill the tank with your new ro water
Add salt to proper salinity
Add new sand
Bring to temp, and start circulation
Add the old sand that you plan on using, as well as a few pieces of your old live rock, and any Marco rock that you'll use (after rinsing it)
Let it run like this for as much time as you have... an hour... 12, 24, whatever. (I ran mine for 24)
Add the rest of your live rock from the old tank
Acclimate fish, inverts, and should you choose, your corals
Aquascape while waiting for the acclimation to finish
Add the fish, inverts, and corals
Appologize to your significant other/parents/roomates for the swearing over the last x # of hours, as well as for the mess
Clean up
Enjoy!

Add beer breaks as required.