LotionSource, which sells Toma and a limited range of discounted Nubar (including my beloved Nu Nails and Diamont), is doing free shipping over $40. I'm very tempted to just load up on Nu Nails and Diamont since I go through them lightning fast. (Warning though: people have mixed experiences with this etailer. They've been fabulous for me but unresponsive to others.)
AveYou has a 10% off all purchases with code: AYBSFALL09 (expiry unknown)... not that that matters because they usually have 15% off with AVEYOU15FORME. OPI, SpaRitual and some other brands are found here.
And if you were interested at all in their Beauty Rush polishes (they don't seem too interesting), Victoria's Secret is doing free shipping today only (I think) with code: FREESHIP.