Reading Half Marathon

Well as the title says, I have signed up for the Reading Half Marathon. It is on March 20th 2011. A great way to celebrate turning 34. When submitting the form you have to predict your finishing time so they can place you in the correct zone. I have gone for 2hrs 30 mins. I had a finishing time of 75 mins for my 10km race in June and the half marathon is double this. I realise that doesn't automatically mean I should double the time but seeing as I have never ran this distance before its a base to start from. Hopefully, with training I should be able to loose some more weight and therefore with carrying less weight should be able to go faster. I shall be looking into some training programs and eating plans etc to help me reach my challenge.
Went for a run today and did 4.85 miles and managed to shave off 2 minutes which doesn't seem a lot but it requires a lot of energy as you have to go slightly faster but for more longer periods of time.
Here's to training for the next 5 months.