'tis the season, does anyone have any beta on deals for plated steel hangers and anchors (preferably ring anchors)?

Wouldn't you prefer double ring anchors?
Those hangers tend to bend easily. I have struggled getting a single carabiner into the hanger of a single ring anchor. You can easily fit two carabiners in the double ring hangers. Plus, the second ring can be used as an attachment point.
I suppose cost is a factor, too.

Here's a pretty good deal on Rawl 5-piece bolts, if you don't mind ordering by the box. Shipping ran me about $10 for a box.

http://fastenmsc.stores.yahoo.net/pobypo.html

The price is right on those galvanized power bolts. The stainless steel ones are significantly cheaper than the local store was able to quote me as well. They wanted $330 for a box of 50 as opposed to $280 on that website.

Flame me if you will but I use the Powers 3/8 wedge bolts if I'm bolting good rock. Easy, simple, hard to mess up (though I've managed), and cost about $1.50 at the Powers store in Denver. They also have them in stock and don't have to order them like the Powerbolts. Their strength is about equivalent shear and pull out to a 3/8 Powerbolt, maybe stronger, I can't remember off the top of my head.

I always grab an unopened box and take how many I need out, that way I know they aren't something in the wrong bin. They probably hate me there.

I also only use SS hangers so I don't have concerns about galvanic corrosion when I match them. To be honest though, I don't have concerns about galvanic corrosion anyway.

I'm good on bolts , I need hangers and anchors.