Hmmm....

Those are two different hydro setups...

There's DWC (Deep Water Culture) or, Bubblers...
And then there's the Flood&Drain (or Ebb&Flow) method.

What system is best for you? Depends on many factors...
I understand you need to know ASAP, but if your seeds are in the mail, don't worry, you've got time to figure out what you'll start with. I say start with, because I initially started with some plans, and they've changed so much that it's astonishing.

How many plants do you plan do grow? Are you going to grow from seed or take clones and grow those? How much space do you have? Is money an object? Do you already have some materials/supplies/equipment?

-turtle420