B&H is probably my favorite but I check Crutchfield.com to see what they have in stock. They often have open box items for a discounted rate and you can get good deals.
Egbert J. replied:
In Canada: thecamerastore.com
Heather K. replied:
http://www.huntsphotoandvideo.com/
Richard A. replied:
Roberts in Indianapolis. Lots of pros use them. robertscamera.com/
Jon S. replied:
www.google.com
Brent E. replied:
www.allenscamera.comFree Shipping and No Sales Tax!