Good luck, Guy - just remember not to break the 'too much too soon' rule.
I could do with some advice really on just that point. Recently started running, two months in and up to the 5k marker. I started out running half a mile and repeating it 3-4 times a week, then a mile and so on and now I've just done three 5k's in a row and feel comfortable with it. My last two times on Thursday and today were 31:05 and 29:26 respectively. I feel I'm at a crossroads as I know those are both beginner's times, so should I focus on getting my 5k time up to say 25-26 minutes or go for the 4 mile marker?
I've just taken up running recently (last two months), I've paid no attention to heart rates, speeds or anything else just yet (potentially naive!). I just kept it simple, buy some good footwear and work up to a distance and see if you can repeat it consecutively.
First I tried to run half a mile without stopping, then a mile, then two and so on. I've literally just come back from my third 5k in a row which I now feel comfortable with, but I've now got a slight dilemma. I've now begun to time myself, Thursday night was 31:05 and this afternoon was 29.26. Do I increase my distance and continue to run at a beginner's pace or stick to 5k and try to run it quicker?