Renaming/Reassigning existing CD/DVD writers to new devices/mount points

[disturbedite]

i'm gonna try to keep this simple, since others more in the know than i will prolly know the easy solution.

here is what i wanna do:
i have my cdwriter assigned as follows: /dev/hda /media/cdrom
i have my dvdwriter assigned as follows: /dev/hdb /media/dvdrom

i want to reassign both the devices and mount points respectively to this:
cdwriter: /dev/cdwriter /media/cdwriter
dvdwriter: /dev/ddvdwriter /media/dvdwriter

how do i do that? i need to use udev right? what options and what not should i use? i'd like to "rename" the original devices (hda/hdb) or create new ones if i need to.