don't fall into the trap of collecting tools
my first instructor was a wise and seasoned turner who advised me that i could accomplish all turning with just a couple of tools -- he was right for me.
for spindle work, i used my french bedan and detail gouge for practically everything.
and for bowls, i use my Ellsworth-grind gouge for most work.
there are a few specialty tools, such as a thin parting tool, point-tool and my hollowing setup. and there are my home-made tools, such as shear scrapers, that get a good workout with some woods.
so don't think you need every new-fangled tools that some smart marketer tangles in front of your eyes to make you a better turner -- time and practice will do this even if you are just using a gouge made from an old auto spring.
other than a good lathe, i think my baldor grinder with good alum oxide wheels and a jig is my most important and used tool in turning -- having a sharp, well-shaped piece of steel against the wood makes a world-of-difference!