Your hourly cost is clearly going to depend on your annual flight hour assumptions.
CDD's 2008 hourly DOC for a T2+ is $834/hr (gas @ $6.13/US Gal, labor @ $94/hr).
CDD assumes $324,725 in fixed costs per year, incl. $81,000 for [single] pilot wage/benefits, and $185,000 for insurance.
CDD also assumes 381 flight hours/yr, giving a total cost of $1,690/hr (excl. depreciation, lease costs, etc.). Throw in market depreciation of $217,000/yr and this figure rises to $2,260/hr.
I/C