You'll need everything fish_wiz listed plus test kits: Ammonia, Nitrate, Phosphate, pH, Calcium, alkalinity, Magnesium
For cycling all you'll need is: test kits (Nitrate, Nitrite and Ammonia), Tank, Stand, Heater, Rock, Sand, Sump, Return Pump, Plumbing, salt, water, thermometer, power heads.
You may or may not run lights and protein skimmer during this period, different people have different opinions.
Which cycling your tank you can buy the other things you will need since cycling takes a while and you can stretch out buying things to be easier on your bank account.