Ultra races for 2010

Right then, my ultra racing plans for 2010 are shaping up well and will be (assuming I have in injury free year next year):

16th January - 45 mile Country to Capital - entered
February - ???
20th March - 55 mile Hardmoors 55 - entered
24th April - 53 mile Highland Fling - entered
29th May - 145 mile Grand Union Canal Race - entered
24th July (?) - 50 mile Lakeland50 - not entered yet
27th August - 103 mile Ultra Trail du Mont Blanc - not entered yet
Then not decided but tempted by the Tooting Bec track 24 hour event, or I might just sit down and go aaah.

I'll try to use the races both as events and as peak week training runs. Any suggestions for a long (ultra or off road marathon) for February would be much appreciated.

I now need to find some time to put together a detailed 4 week periodised training plan. I didn't do anything detailed last year, trying instead to run a rough 4 week periodised plan from memory along. It didn't really work. I didn't know how I was improving really and it was easier to bail out of sessions when they weren't written down.