I think you all know that when you add resources to SAI (brushes or textures) than you have to update the *.conf files manually as well... When you start SAI with this batch script - which should be copied in the main folder - you haven't to do this. It will scan for new resources every start (with the file) so you can easily try different configurations.
BEWARE: The config files will be written from scratch so I in can happen in further versions of Sai that something will go wrong. This batch however makes backups of the old files... So when you notice that all you brushes are gone from the files just rename the: *something*.conf_bak back to *something*.conf and all will be fine. ;-)
Also I created a bunch of brushes. Most of them are for hair, some are for forms and some just for fun. I guess all of them can be actually useful tough. So if you want them you get them right here:
BRUSHESThe batch can be found here:
BATCH-> Start with the batch after you copied them into the folder and every thing will be fine.
-> When you remove them you also should start with the batch again because it then removes old entries.
I hope you find it useful, for me it is

update from restorer:
It seems the brush link is dead. Can someone fix this?
Yep.
If you want .bat file (I don't know why someone may want this), just download attach from this post.
If you want new brushes, download "PaintTool SAI English Pack 1.1.0 (1.32 mb)" from home page.