Well if you aren't interested in doing your brakes or suspension...then
A remap would be a good starting point to unleash some more power. However, if you want to get some real money spent and some good power then before the remap (remap after to utelise all the new parts you have!!) would start with breathing better so a pipercross air filter or so on, and a decat or sports cat exhaust system in place perhaps to allow the exhaust gases to flow better. That'll help the engine breath better.
A new Forge diverter valve is a common mod if im not wrong, and along with better cams and a hybrid turbo you'll be hitting big powers in no time!