HolzBrew and friends will be pouring beer at this weekend's NOVA Brewfest on Sunday afternoon from 2pm to 6pm. The fest is both days, Saturday and Sunday, out at Bull Run Regional Park in Centreville. Tickets are still on sale, see all the details at the official site: http://novabrewfest.com/fall/
The list of brewer's and beers can be found here. My favorite Oktoberfests this year will be available, Left Hand and Flying Dog.
If you've never been to this fest you've got to come out for it. Or even volunteer for it.