Im in the middle of designing a gallery. Im having trouble deciding how to display the gallery categories. Im not sure if I should have:

A link to the gallery category page on the homepage.
Have them displayed at the top of the homepage.
Have them displayed at the top on a drop down on the homepage.
Have them displayed on the left column on the homepage.

I know the best in terms of usability is to have it displayed all the time, but it takes up a lot of space and would probably look better if t was on a seperate page.

My question to you is, if you go to the gallery, how do you prefer the categories to be displayed?