Spent the day at the National Folk Festival, for something a bit different. (By 'National', I mean 'Australian').
Lots of good guitar, as long as you don't mind it mixed with bagpipes, dulcimer, didgeridoo, fiddle, etc. I think my favourite was the German duo covering Rammstein and Kraftwerk on guitar, accordion and glockenspiel.
Anyway, if you're ever in Canberra this time of year, it's a fun 4 or 5 days.