Thanks DS2, dancing in spikes - I don't call myself one gear for nothing.
DS2 - we talked about my training for London this year. So I thought I would just show the christmas week last year as a taster. It assumes that you have a good autumn base of 40+ miles per week at around an average 7:30 pace.
Based on that, it is the "guaranteed" old man's sub 3 schedule:
Week starting 25th Dec 2011 - 44.2 miles @ 7:33 pace (Asc 4707 ft Desc 4650 ft)
Dec. 25th: Sun 5.87 miles @ 8:08 pace
Mon 16.07 @ 7:34
Wed 4.39 @ 7:26 6.33 @7:25
Thurs 6.29 @ 7:26
Fri 5.31 @7:13
None of this would be run at marathon race pace - just engage the one gear and crank it out.