How do I set my mac to ask what disc I want to boot from without having to hold alt?

I can switch between OSX, Windows and a network drive, but I cannot seem to find this option anywhere.

Solution 1:

rEFIt

rEFIt is a boot menu and maintenance toolkit for EFI-based machines like the Intel Macs. You can use it to boot multiple operating systems easily, including triple-boot setups with Boot Camp. It also provides an easy way to enter and explore the EFI pre-boot environment.

• rEFIt allows you to sync partition tables

• customize:

  • set default to boot from
  • define wait time before a boot option is selected
  • configure the rEFIt boot screen

Solution 2:

You can use rEFIt, which will automatically present you with all boot options when you install it to the OS X Volume (see this article for more detail).