Not sure how much use this is, but I'm going to post it anyway.
I went to a Photoshop conference in Arlington the other week.
BH Photovideo had a stand there. The litttle brochure they had contains a bunch of discount codes for various items (too many to list here). They are in addition to any rebates etc and, I'm told, they'll work online. Some of them are more interesting than others (eg $50 off a $4k 1D MkIIN is nothing to write home about but $100 off a 70-200 2.8L IS is more interesting). Overall, if you're planning to buy, they're worth having, but it's unlikely they'll cause you to make a purchase you weren't planning already.
Examples are:
70-200 2.8L IS $100 off - code #PSDEC054
16-35 2.8 L $100 off - code #PSDEC053
Extreme III Memory cards 10% off - #PSDEC069
Lexar Pro 80x Memory cards 5% off - #PSDEC068
I just noticed that they are also online on the BH site - they just don't give you that price unless you go to the particular page:
http://www.bhphotovideo.com/psdec
Apologies if you've seen this before - it was new to me anyway!