Thanks Kaz! Because I was just wondering, when exactly to use them and how it would make my banner better etc. As you can see I experimented and have a random tube on the top left corner of my current signature banner.
Now that I'm more aware though I'll have a look round for some more, thanks.
I have one more question however - what are 'accents' i.e. what do they do, and how do I use them? I typed 'accents' in the PSP help topics section and nothing came up.