R.M.
My doctor told me that the alcohol will only be in your breastmilk while it is in your system. If you can feel the effects, so will your baby. If you wait 2-3 hours after a drink before feeding baby, you should be ok. This is for people who don't drink daily, but just a few times a month. Daily drinker's bodies will metabolize the alcohol differently. SO- I wouldn't drink daily. If you have a girls night out, it should be fine. Just don't nurse the baby until the alcohol is completely out of your system. And it doesn't get stored in your breastmilk, so there is no need to pump and dump the first milk after you drink. (Although I still did because I am neurotic. :)
Here is a link to kellymom, which is usually very accurate and up to date:
http://www.kellymom.com/health/lifestyle/alcohol.html