In no particular order, and are just the ones I can think of right now:

1.) Bristol Brewery's "Mass Transit Ale" (CO Spgs)
2.) Phantom Canyon's "Demolition Cream Ale" (available only at Phantom Canyon, in CO Spgs)
3.) Anchor Steam (CA)
4.) Sierra Nevada Pale Ale (though is that still considered a micro?)
5.) Summit Extra Pale Ale (MN)

And though it's definitely not a micro/regional, right now I'm enjoying the hell out of Sam Adam's "Oktoberfest" (one of my favorite Fall beers).