Sure, the forecast is rather foreboding this week, but frolicking in hot summer showers worked for that splendidly dashing Gene Kelly, so you can make it work for you, too. Finish off July on a rain-soaked, culturally satisfying note with this week's round-up of all sorts of trouble to get into. Oh yeah, and leave the pocketbook at home. Monday: Not exactly known for its diverse and sandy beaches (or, er, any), today's Festival......