Yup. Most modern notebooks should have one at least. But check to make sure!
DVD+RAM drives and media are getting reasonably cheap now which could be a possible solution. The variant that doesn't work properly in most DVD drives is getting cheaper anyway. Ones that work in a DVD player are still quite expensive.
I use a Adaptec CardBus SCSI card with a SCSI->IDE adapter board connected to a IDE drive to backup my laptop.