I have found a new place to buy most photographic supplies for both color and b&w. This includes chemistry, filters, roll paper, and anything else you can think of. I am not sure how good their prices are, but for 1 qt of Pec-12, I paid 58.00 verses 67.00 at B&H Photo. I suspect you will find their price very competitive.
The company is Liberty Photo Supplies and their website is Dead Link Removed
The company is Liberty Photo Supplies and their website is Dead Link Removed