The biggest problem I have with Ron Paul, is that there are way too many Austin hippies and other local liberals who actually AGREE with him on many issues. If liberals agree with him, I don't think he is worth supporting in the general elections.
Would be great if the Republican Party could find a way of welcoming in the young RP supporters for the libertarian/small government positions for which we have common ground. Iraq is a fading issue anyway, but if they felt they could find some hipness and understanding beyond RP in the party it could turn out to help the Pubbies.