Can I be tempted to run a full marathon?

Today's run (street): 2.5 miles
I'm clearly back to full strength in my running as evidenced by today and yesterday's runs. A good part of my work week is taking place at industry meetings and yesterday I had the good fortune of seeing both of my running mentors (CK & CMC) during the day's events.
I told CK that my troubles on Friday were likely caused by my flu shot. I'm not sure he bought that but I'll show him next time. CMC offered to run with me on my first marathon which sounds great, although my current position is that I won't ever be competing at that distance. We'll see.

This morning's run was pleasant, and like yesterday, it seemed to go by quickly. With temperatures in the mid 30's, it's much colder than a week ago, but I fully appreciate this weather. This weekend is supposed to be nice and cool -- great for the NYC marathoners and great for those of us training for our next 10K.