No, not a good idea. Alcohol will drain water out of your system. That is the last thing you want when supplementing with creatine. You need the right hydration levels to get the most out of creatine use.
Of course it's your body and your goals. In moderation you won't hurt yourself or anything , just slow down the process. So with my diet and training, i wouldnt even think about it, but if you wanna have a good time don't worry you'll be fine.
More FAQ's regarding Creatine.
http://www.bodybuildingpro.com/creatinefaq.html 
