Bought photoshop for my mac, 89$. Not too bad. Want to use it to see what my apartment building might look like in various colors, before I paint them. Changing the color is not as easy as I would have liked. Figured there was a pallet, and I just pic a color. Nope. Any free online tutorials? Any easy way to do this? For example, garage is dark brown, want to see it sided in beige, white, etc... Any help or refferals to sites appreciated.