I\'ve used several different kinds....my favorite by far are these:
http://www.mageyes.com/
Primarily because they allow for peripheral vision and such---where the \"hooded\" magnifiers don\'t. That way I choose when I use them, without having to flip them up, remove them, etc.
Oh yea..and the lenses are much easier to change on these than any other type I\'ve used.
As far as brushes and such---and I\'m sure someone has spoken to it already...
A good brush that will hold a fine point----
Make sure you can get a smooth, consistent line of paint---(flow improver helps me here--some folks don\'t use it).
And I prefer the largest brush possible for the job---usually around a #1/#2, in my case----so it can hold a good brushload of paint. I just hate \"skipping\' halfway through a long line.
Good luck,
Kev