Here in CA, B&H is a no-brainer. No sales tax.
+1 If you're in the NYC area during one your your travels... you should check out the store it's amazing!!!
1DX, 5D Mark III, 5D Mark II, 16-35mm f/4L, 24-70mm f/2.8L, 24-105mm f/4L, 70-200mm f/2.8L , 70-200mm f/2.8L IS II, 100-400mmf/4.0-5.6L, 50mm f/1.4, 85mm f/1.8, 85mm f/1.2L, 100mm f/2.8L, f 135mm f/2L, 580EX II, 600EX-RT