Re: 2007 Sub 19-minute 5K
Mission accomplished, though a few weeks ago I wouldn't have guessed it would be today that I finally did it.
Last weekend I "ran" the Twin Cities Marathon in the heat - I started getting dizzy and light-headed at mile 16 and decided to pack it in and just walk/jog the rest of the way. I was way short of my time goal, of course, but at least I finished in one piece.
One of the biggest local 5K/10Ks was this weekend, and I originally had planned to skip it, figured I would be too shot after running a marathon the previous weekend. But my legs felt much better than expected this week (probably since I only raced about 2/3rds of a marathon), so I signed up.
Conditions were great this morning: mid 50s and overcast (oh, to have had that in Minneapolis!). I faded a little towards the end and was passed by a couple runners - I think my legs weren't quite as fully recovered as I'd thought. But I still hung on for an 18:39, which finally puts me in the sub-19 club. My next goal was going to be a sub-6-minute-mile 5K, and 18:39 is exactly 6:00 pace, so I guess I'm in good shape to knock that off this fall.

Good luck to everyone else! Now that summer's heat is (hopefully) on its way out for good, I'm sure a lot of other PRs are going to fall as well.