[HydroSearch]

Your question should probably be more specific White420! The amount you'll spend depends on the type of system you want, the size, lighting required to cover the size of the system you select.

All the components required to have a complete hydroponics set-up (pump, light, trays, reservoir, bulb, et) varies from system design-system size.

I would recommend you figure out how much space you have to dedicate to growing, how many plants you plant on cultivating and the type of system you want to use (ebb & flow, drip, water works, nft, wick systems, et). After that you should be well on your way to finding the right system for your particular requirements.

Cheers,
HS...