Thanks all - yes I was pleased with those splits. I surprised myself to be honest, and the last split was the quickest which is always encouraging. I was shattered at the end, but I suppose that's the point 
Carter - yes, I use that Garmin route finding facility quite a lot for races I haven't done before. It's not an exact measure but it just gives me a bit of an insight into what the course is, where any major inclines/declines are etc. You will find that the results from different watches differ slightly for the same event, but I look at 2 or 3 and kind of go for an average, or discount the ones which are obviously wrong (for example, I have seen a profile where it was -100 meters for a few miles, and then just jumped up to +1000 meters which was definitely not right...that watch must have been faulty!).
There is some strong running by everyone here. We're getting to the business end of the training now, aren't we! I think my target race is a bit later than some of you, and this next 3 or 4 weeks is key for me. I have a 6-miler today, and then a 20 miler on Sunday. Due to my 10K a week on Sunday, I have had to shuffle next week's training around a little bit. I want to do well in my 10K, but it's not a key goal for me so I'll see how I feel on the day.
I am also wondering what to do after my May 5th marathon in terms of training. I have a June 23rd Half Marathon for which I want to have a crack at a sub-1:40 but I'm not sure yet how I'll organise the training for the 7-weeks between the marathon and half marathon. If anyone has thoughts on that, I'd be interested to hear advice (I know June is a long way off but I want to start thinking about it).
Edited: 15/03/2013 at 09:53