Here are some lightning bolts made with Photoshop CS3. I made them in hurry so expect the second version because some of the brushes have a glow light so high that it exceeded the document corners.
Include 26 brushes HI res (from 900-2500 px) aprox: 6mb
Pls credit when use them. I would also apreciate if you would send me a link to the imge where the brushes was used, just for curiosity.