That's really exciting!! A great friend of mine finished her first last weekend, and was really surprised at how she felt through the whole day – not at all what she was expecting!!!
I of course lived completely through her all spring and summer, I can honestly say “never” when it comes to swimming and then biking.
Hmmm, but now if I remember correctly – weren't you the one that told me Boston was the last marathon for you? I think there may be one in IM ;D.