My running schedule from Aug to end of 2012

My planned mileage beginning Aug to the end of the year.  Includes 4 races : Army half marathon, The North Face 50k trail, Newton 30k run and finally, Standard Chartered marathon.  Opportunistically, might add in Taroko marathon (or half) in mid Nov.

Depending on how close I hold to this plan, it's 580km on foot!  Yipes!