Hey Craig, good to read your progress so far. 'Fraid I got the dreaded tummy bug going round (Emma's had it too, poor thing) and have been lying in bed even more than I usually do over Christmas 
Really glad you like the acceleration strides. They are a great way of 'waking up' your legs at the end of an easy run - stop you getting into that plodding mentality. They are also a good thing to do at the end of a jog warm-up before a race.
Gel-wise, agree it's good to have the option to take without water, but bear in mind you will be needing to take water on board regularly throughout the race. No need to carry water in the race itself, I'd say - there are enough water stops to just carry gels.
So, here's the next week's training schedule:
Week Two w/c 2/1/12 (22M)
Mon Rest
Tue 5M of 1M jog, then 2 x 1.5M (or approx 13 mins) fast, with 400m (3-min) jog recovery, then 1M jog
Wed Rest
Thu 1M jog, then 2M (or approx 18 mins) brisk, then 1M jog
Fri 4M slow plus 4 x acceleration strides
Sat
Sun 9M (100 mins) easy (ideally on road)
Let me know if any questions/comments - and how you get on!