graphicxtras.com for plugins and presets
How to take a Photoshop brush and vectorize it for Illustrator strokes tutorial, how to convert brushes to vectors.
Create a large new document in Photoshop (2000 x 2000 say) and goto the brush tool in toolbar and set color to black
Select a brush stroke to be imported into Illustrator from the brushes preset picker and set size as required
Apply brush stroke
Select document and drag to the library (create a library for Illustrator brushes perhaps)
Open a document or new document
Select the Photoshop brush and import into Illustrator for conversion to a vector Illustrator brush
Once you have the image (however it is imported), you can then use it as an AI brush straight away by dragging it into the brushes panel (with the most recent versions) but if you want to use it is a vector imported Photoshop brush then you can convert it into a vector via the image trace command (or use the pen tools to create your own version of the brush stroke)
Select the imported / placeed image and click image trace.
Display the image trace panel and change the treshold as required
expand the artwork.
Create a small nil fill and nil stroke path and use the select menu select similar fill and stroke and delete all the empty paths leaving only the black path.
You can then combine all the paths of the stroke using the pathfinder panel
Now you have the vector design, it can be imported into the brushes panel and used as an Illustrator brush (from a Photoshop brush)
Select vector design
Drag into the brushes panel
set as a scatter or artistic etc stroke.
$7.79 (also GBP, etc) per set, AI format, download
16,000 Illustrator brushes / Strokes from graphicxtras.com and perfect to combine with Photoshop brushes as well AI Illustrator brushes collection [browse]
You can find our selection of 16,000 Illustrator brushes strokes perhaps of use and they can be combined with any of the strokes from Photoshop (as well as exported to PS)