80 gallon sounds like a lovely size. My recccomendation is searching this forum for 'newbie" "plant braain" "substrate" "rexx grigg" and "co2" Then you'll be well on your way.
Also if you are in the SF area, join SFBAAPS and start coming to meetings.
hope this helps.
Also, canister filters work great if you don't buy a crappy one. Via Aqua, fluval, Eheim and ADA (in ascending order of cash money) all work great.
Eco complete is fine, many people have luck with ADA Aquasoil.