Yeah, I'm sore today. Not as sore as I thought I'd be, but I'm still pretty stiff. Last night, I stretched and drank plenty of water, but I knew that today my legs were gonna feel it. It's mainly my quads that hurt, especially when I sit down (that squating move you do to sit into a chair -- ow!).
Today I'll rest and tomorrow I get right back into it with 5 miles. Looking at my schedule for the next few weeks is a bit intimidating: this is where the running gets serious (I guess that's why it's marathon training), and my scheduled long run for the weekend? 15 miles.