When you look at a kit, like the one above...You should google every item they provide. Google and ebay as well as BgHydro and Sunset hydro...Will give you the best all around pricing. find the ave. or best price,
then add them all together. this will tell you if everything you get in the kit is a good deal.

I have posted several build threads, but if you don't want to build, and money is not an issue...I would by a 3x3' or 4x4' ebb and flow table. easiest by far, it is wide open, so cleaning and maintenance are really simple.
Here is a total list of what you abslutely have to have to be successful. There are some items that you should have, but can grow without; And I will leave that to the many responses we will get after this post. I am going to just list "System" as system since we don't know what you are getting.

1. System
2. At least a 250w hps light
3. PH pen
4. 24 hour light timer
5. GH 3-part or pure blend pro
6. pH up/down
7. mylar or panda plastic
8. 2 fans...one dedicated to plant canopy and one for recirculation
9. thermometer/hydrometer
10. hydroton or other medium
11. netpots
12. surge protector or reptile timer
13. additives.

If I filled this list, I could grow good plants. Good Luck lw