I would recommend you hold off buying a computer untill well after you complete your training. I doubt the training will involve any computer dives other than profiles generated on a desktop and I think you will have a better idea of if you even need one after training.
I used an OMS bottom timer for a long time, bought a suunto vytec and even not it is my bottom timer. My primary computer is a HS explorer model O but I still cut desktop profiles for all my serious dives.
I used an OMS bottom timer for a long time, bought a suunto vytec and even not it is my bottom timer. My primary computer is a HS explorer model O but I still cut desktop profiles for all my serious dives.