Before I go for bed, I better end my day with some links that will convince myself how important discrete mathematics is that important to computer science.
http://www.computer.org/education/cc2001/
http://www.sigcse.org/cc2001/

In Chapter 5 of sigcse site, Discrete Structures is the number 1 topic to be covered under "CS Body of Knowledge". I cannot believe my eyes that among the many topics, Discrete Structures turns out to have the highest desired allocated time for it.
http://www.sigcse.org/cc2001/cs-overview-bok.html