A good read of the junk mail is a great place to start looking for ideas. Local equivalents of Target, Myer, Big W etc catalogues.
In Style, Shop till you Drop and similar magazines are great value too. Not necessarily with a view to shopping, but just to see what the next season's trends are. They give a lot of lead time so we can save up!
Once you have sorted out what your personal look is likely to be, then you can look more seriously.
Karen.