I started with:
hang on back filter from a fw
T5 tek light I got a deal off craiglist
2 power heads and one I had for surface agitation.
Live rock and some base rock.
Heater and thermometer
I don't have a protien skimmer yet but will have one next week.
My filter is simple and all it has is a sponge to clean water and I put lr
fragmentation in the filter with some biomedia. It does the job just wish it had more suction because the current often times makes the particals in the water fly past the intake. It will take a bit to cycle so you should be good with all that