I am exactly the same stage, so although I can't be any help with a training plan, it's always good to know there is someone else out there doing the same thing. I read in this months RW about doing a 4 day training week, with the days as follows:
Day 1: A long run - 30mins+
Day 2: Recovery run - minimum of 20 mins - slower than Day 1
Day 3: Tempo run - minimum of 20 mins but faster than the other 2 runs
Day 4: Interval training - fast/slow spurts for as long as you can.
Recovery days in between as required. See October RW for more details.
This was my first week of doing it, and although I am exhasusted after doing interval training today, I am looking forward to Monday to being able see any improvement in my long run, and being able to build up my running time and distance.
Today was fun being able to run really really fast for a short while and really stretch my legs, and then slow down to a slower than usual pace for a while to recover.