Hiya,
DMOZ isn't really important in a way it is a directory, you got a lot like JAYDE, ZEAL, LOOKSMART anyway.
But i will always advice anybody to submit its website on DMOZ. In one year i made a test, DMOZ and the other directories gave me 3000 MSN links and 1200 yahoo link without doing anything.
My
PR changed from 0 to 3 in a year. Personnal site...