Didn have a chance to flesh out my thoughts earlier;
Buy good plywood, which in this case will be AAA grade hardwood plywood with a veneer core, and many yards can source S4S lumber, which stands for 'surfaced four sides', buy that and not rough sawn lumber. Rough sawn lumber is for someone, like myself or like Ataturk, who are capable of processing lumber.
There are some good online resources such as Woodcentral, Woodnet and Sawmillcreek.
Festool stuff is really good, for the most part, it's engineered around the traveling carpenter/cabinet maker, best part is that practically all of it is designed to hook up to a vacuum and the festool vacuums are nice.
I have a book called 'The Home Cabinetmaker' that my father gave me some years ago, it's a good basic walk through and how-to of building basic furniture and kitchen cabinets without owning a cabinet shop full of tools.
You dont have to spend a fortune, but avoid junky tools, they make stuff much more difficult.