nice job on the 10k!yes, speed training will help. what workout did you have in mind exactly?
I've got the "Improve your Speed" workout from the Nike part of the iTunes store. It's basically a 10 min warm up, followed by 4 mins fast, 4 mins slow, 3mins fats, 3 slow, 2 fast, 2 slow, 1 fast, 1 slow and a 10 minute cool down. It still quite a long run, I was after something more like 30 mins, I guess I could cut the start and end by 10 mins on the MP3!