"Oh Shit", if you want caps you can check out "The PRIME" skateshop on University Way &50th
also, underneath the petco in wallingford there's a art warehouse that has shelves of montana and caps
and if you're really wanting to go all out
the biggest graffiti distributer in North America, ART PRIMO is located in Fremont. (artprimo.com), but you have to buy shit wholesale