[Centos] how to autoload modules on boot

Hi, 

I want to autoload ide-scsi.o on each boot.
In debian there is a file

/etc/modules

in which I can iclude the names of the modules that are to be loaded
at boot time

As I remember in gentoo there was a similar /etc/modules.auto or something ...

is there an appropriate place in a redhat distribution or I should
write my own rc script?

sasoon