IM in 13 Months?

I just wanted to finally say “Hi” and introduce myself since I have been a member for a couple of months and have been searching the threads everyday. This is such a great and positive website!
I have completed a couple of sprint triathlons and started researching to find out how long it would take for me to train for an IM distance tri. This is how I stumbled onto this site. I have been a soccer player all through college, played semi-pro (for about a second before the team dissolved) and play now and then on a local league. I have been a runner all of my life, but got into swimming and biking when I developed plantar faciitis a year and a half ago. My first marathon is in November and training has been going well, despite all of the hurricanes that have kept me indoors for a few days at a time. I would like to sign up for the IM Florida in Nov 2005, but am hesitant and still not sure if that is enough time to complete a ½ IM or Oly and a full IM in a year’s time. The members of this site have given me a lot of insight into tri’s and I find that it motivates me to workout after surfing the “threads” every day! Thanks.