I'll be making the annual pilgrimage to the Hamvention today, a huge electronics fleamarket that's been held annually for 57 years now in Dayton, Ohio. (I've only gone to the last 28 or so. ;D) Nominally it has an amateur radio theme, but there's also a large computer and just general electronics and "maker" flavor too. It'll be interesting to see if Arduino makes an appearance anywhere. At least it'll be another opportunity to pick up cheap parts and curiosities!
To get the flavor, check out flickr photos tagged "hamvention":
Here's a pic I took of one cutie (aka Q.T-1) last year:
From G8HBR