Which power supply..

[Guest zippy500]

Hello,
my first post sorry if it's in the wrong topic section ???

Want to start out in hobby electronics.

Just wondering which (cheap)power supply to get was looking 0-15v
But someone said that I should get a 0-30v.

Just starting out so not looking to spend loads of money, do I need a variable
One, was looking at converting a Atx PC power supply??

Any views are welcome.

Thanks

[audioguru]

A power supply has a maximum output current which you did not say one word about. How much current do you need?