Fasttech for batteries, prices can't be beat and they come in nice plastic case+free shipping
Vapoligy for silica wick, great price 2.95 for 5 feet
Temco for kanthal wire, best price especially at their ebay store
myfreedomsmokes for unflavored nicotine base, wizard labs is a little cheaper but MFS comes in glass and more pg,vg options
onestopdiyshop for flavoring, great prices for bulk ,4ounce, and great selection
discountvapers for everything else, Eric respond to questions in hours sometimes minutes, if something is defective he takes it back no problem, fast shipping, competitive pricing, carries all the latest and greatest, and the owner was my vaping sherpa having answered all my annoying questions about products and how they worked in a kind and timely manner when I first got into the vaporizing world.