I picked up the Battle at Helms Deep set from the Toys R Us near where I work. Through the 11th of January they are running a special where you get $15 off any Lego purchase of $60 or more - the shelf tag for the set was $139.99 which if you take $15 off takes it down to $125.99 - which isn't great, but it's $4 off the original MSRP price of $129.99 - and certainly much better than paying eBay/Amazon Vendor mark-up for it.
The great part was when I went to check out, the register rang it up for $149.99 and I went and grabbed the shelf tag and made them give it to me for the $139.99 price, so thanks to the shelf tag error, I was able to get it for $25 off of TRU's over-inflated price....
I also picked up Shelob Attacks.
So from the 2012 sets I still need: Gandalf Arrives, Uruk-Hai Army, Mines of Moria and the Orc Forge. The Mines of Moria set is also at my local TRU - but for $99.99 which is $20 over MSRP. It's also on TRU.com and Target.com for that price - so I might just bite the bullet and get it before the $15 off deal expires at TRU, which again, is better than paying eBay/Amazon mark-up.
The other three sets and the polybag figures are going to be pretty painful I think...