Neither of mine are cheap but they've never steered me wrong.
Peak has a great forum craftserver.com. It focuses on candlemaning and soapmaking too. For soap I like us, but you cannot beat that forum for candlemaning help.
ditto what carebear recommends. i also order from brambleberry and natures garden (alas, peak's shipping rates have gone up so i'm weighing options as they were a big favorite before).
CandleScience.com for just about everything. I even order most of my fragrances and such for my B&B supplies from there. I just wish they had a good selection of B&B supplies, they're that good!!! Fast shipping, incredibly cheap prices, etc, etc. Just ordered about $150 worth of stuff from them earlier today.