Multipple stepper motor control via internet.

Thank you Grumpy_Mike for your reply,

These motors should not move at the same time, one at one time, for starters. Actually, the vision is to press the button on another PC, to move a certain stepper. I hope this was a bit clearer idea.

What do you mean by it would be more complex if they move at the same time? Is it related with power through the board capability?Or the programming part?

The water pump should work with humidity sensor, when the humidity drops below certain number.

we could leave aside the vacuum pump for now, until i get the grip on these things.

The thing i am thinking on constantly is to buy atmel micro controller that has higher capability to my project and to try to create a board. Of course i understand that it is complex, but i am eager to learn, make mistakes. I thought that i'd start on arduino, to get a grip on everything, but also trying to save finances because they are a bit fixed...

Maybe any advices what to read, maybe some hardware to buy for practice?