I don't generally like to clutter the group with sale notices. But while I shop at a LOT of different stores, if I had to chose one as indispensable it would probably be Chambers St (though Zachys is store I buy most from according to Cellartracker). Almost certainly the strongest store in the country in Loire as well as the more obscure French regions, very strong in Germany, Piedmont (especially older),. Burgundy, etc.
Due to landlord/space issues, they are moving down the block. Currently they are having a moving sale of in-stock items. They've discounted everything that wasn't already non-discountable (some rarer/older things 10%, most things 20%). Some very good deals at
http://chambersstwines.com/I had declared I wasn't buying wine in August. But I just ordered some Germans (Hexamer. Gysler, Emrich-Schonleber, Van Volxem), Loires (Clos Roche Blanche, Cazin, Bellivière, Filliatreau, Pinon, Guion, Huet), Burg (Marechal), Piedmonts (Sella Manzoni - Valentino) and one lone sicilian (Biondi Etna Rosso). But I also saw deals in Bordeaux, US (ESJ), Austria, Rhone.
No affiliation except as a satisfied customer.