Well, first of all if I were you I would make sure I have potential clients before spending the cash on anything. For instance I have the capabilities to specialize in ultra high tolerance aerospace products going to mars, but if I don't have the contracts then I won't be able to make products in my desired speciality. More often than not your customer base decides what you specialize in, and especially being a newcomer to the scene you aren't necessarily going to be able to do exactly what you want until you build your reputation and customer base first. This can be a very cutthroat industry to put it lightly.
Machines, tooling and software capable of full on 3D profiling can run you upwards of half a million depending on exactly what you want to do. Also you have to factor in overhead just to be able to turn the machine on. I have been looking into newer cam software and a fully functional 3d capable package will run you upwards of twenty thousand dollars or more depending on exactly what you want. The base gibbs software is only a few grand, but you can't do much more than simple 2d wireframes, any new functionality you want is pretty much another package add on, another few grand, and then you have to spend another few grand on the post processor and the simulation model for your particular machine.. have multiple machines and you need to spend even more. Any cam company worth a snot breaks every last bit of functionality into different packages to milk the most out of you, so when you end up being able to do what you really want you've bought numerous packages at thousands a piece. Not to mention training.
I personally don't have experience setting up my own shop but it really isn't as simple as buying a machine and making bank right off the bat. I don't mean to discourage you and I wish you the best of luck, but you'd be really wise to have a clear business model, clients set up and to have crunched all the numbers of just what its going to cost you to get up and running before you even cut your first piece of wood/metal.
As far as machine suppliers in Ontario there are a few out there but I personally have experience with both SMS and AMT. Both offer different ranges of products and are quite competitive with each other.