Advice for new 40 gallon

First tank in 8 years. Here is what I have so far.

40 gallon corner tank
29 gallon from previous setup
800 gph powerhead
100w heater
timers for lights
lighting

Is it best that I use the 29 for a sump, or is there a better option for this. Basically, give me an equipment list of what else I should get before I set this up. Some have said use a sump, some swear against it.

Consider me a newbie in this. And go!

Thanks in advance!