At last, a summit at which everyone’s bound to agree (after a few drinks, that is): a beer summit! Harvest Fest happens this weekend at the Park Plaza Castle. A mere $40 will entitle you to a commemorative tasting cup, 10 samples of beer (extra free samples are available to those who haven’t “overindulged,” so act sober), and live entertainment. The focus is fall and winter brews, and a fine assortment of local, regional, national, and international brewers are slated to represent. The summit begins at 6 p.m. on Friday night and at 12:30 p.m. on Saturday afternoon. There’s a Saturday evening session, too, but it’s sold out.