hi people

i want to get equipment for mining.
not bitcoins, not litcoins (well , maybe litcoins   ).
mainly new coins at their starting days. like doge coin was, and earthcoin and other alt coins.

i own a macbook, and i understand its not the best for mining.

what computer i need in order to mine with good speed and volume.

 can you recommend a good and efficient mining rig so i can mine ?

not the most expensive but not the cheapest , a good and reliable that will be used only for mining.

and also.. is it worth while? do you people really make money (not few dollars) from mining?
thanks!