Seriously, though....
We tend to take the "give a man a fish
versus teach a man to fish" approach here - we're more than happy to
show you how to do something, but if we do it for you you'll never learn anything.
Have a look at this post:
http://forums.biorust.com/general-di...html#post32902 (How does one 'create' a custom Brush???)
There are also a million and one brush tutorials out there in Googleland:
photoshop brush tutorial - Google Search
Failing that, hit
F1 in Photoshop - it's all explained in the Help files.