what are you looking to get done?
as a signmaker i would suggest going to your local sign shop, go to an independant one man band rather than a franchise branch, they usually have more time and interest plus the graphics will be cheaper. find some pics of something that you like and have a look on www.brandsoftheworld.com
this is a vector artwork logo archive, they have hundreds of motorsport and brand logo's that are in a usable file format to the signmaker.
i wouldn't buy kits from the web because they are very expensive and not always original.
let me know what you have had done.