I look after 2 EC135s and have plenty of time in the 120. I don't know about anyone else, but our insurers would have a fit if we offered ab-initio training in the 135 and I think the chaps at the Belgrano may have a few words about it as well.
Wet rate on the 135 £ 1350 + VAT per hour, rather a lot of cash up to CPL level, let alone PPL.
The 120 is lovely, but I don't know of anyone operating one on a TRTO. If you want to go the turbine route from the start then go 206, just make sure there is an intensive care bed availlable for your bank manager when you tell him the cost!
FF