Providers of drilling engineering software

[DrillerNic]

Up to now I've always worked at larger companies that almost all used the Landmark suite of design software (Compass, WellPlan, StressCheck, WellCat) or at SLB where I used their design software (TDAS, Drilling Office etc).

Now I'm at a smaller company who are frightened of Landmark's prices... does anyone know of any other company supplying software for:

Torque & drag analysis
Casing design
Drilling hydraulics

Cheers!