Well, I'm quite disappointed with myself for 2011... I definitely didn't keep to what I posted back in February. If anyone is curious as to just how badly I strayed, I updated my previous post in
bold:As for what I'm collecting in 2011:
Star Wars
TVC - Picking and choosing, which ultimately means getting everything.
I'm planning to army build the new clones, and even some Utapau and Storm Troopers if Hasbro rectifies the yellowing issue. Ended up with every new 2011 TVC figure, plus most of the Revenge wave repacks; army built rebels, stormies, and clones
Clone Wars - Probably everything, plus multiples of the army builders. Well, I stuck to getting everything... 
Vehicles - I'll probably get the Turbo Speeder and Tri-Fighter. Not sure if I'll continue buying multiples of vehicles. The Attack Shuttle is a must for me. I'll definitely try to get two so I can have one in "ship mode" and the other in "playset mode." For the most part I stuck to multiples of generic ships... two Droid Gunships, four AV-7 cannons, etc. I did get both of my Republic Shuttles for around $50, so that makes me feel better
G.I. Joe
Probably scaling back on this. I got the whole POC line from last year, and I definitely have some buyers regret. I'll definitely be picking and choosing. Garbage like Sci-Fi and Crazy Legs should've been left in the 80's. The jet looks really cool though, and I might have to add one to my collection. "Picking and choosing"... Hahaha! I ended up completing the Pursuit of Cobra Collection and I'm mostly current on the 30th line. I increased the army building, even to the point of getting multiple vehicles
Marvel
Captain America - Probably a movie Cap, comic WW2 Cap, Winter Soldier, and Crossbones for now. Getting other movie figures depends on what is available and how much I like the movie. I kinda stuck close to this one. I got the figures I listed above, plus a Hydra trooper and a couple of extra (and cheap) comic Caps
Thor - Not as excited about this line. I'm sure I'll get a Thor or two after seeing the movie. I got more figures than I wanted to from this line, so I'm trying to sell them off. I plan to keep only one Thor
Anyway, here's what I'll probably be collecting in 2012:
Star Wars:TVC: Probably one of every figure. I would love to army build the battle droid en masse, plus a few Naboo soldiers and pilots. In addition I plan to get the AT-AP and JSF repacks.
TPM: I'll get the new figures, plus extra Gungans. Vehicles (pods, AATs, Naboo Fighters, etc.) are definites. I'm on the fence for the deluxe sets. No Movie Heros, no repacks.
Clone Wars: One of everything, plus some army building of the ROTS-style clone. It should be easy (and cheap) enough to keep up with Clone Wars next year.
GI Joe30th Anniversary: I'll finish off this line with waves three and four, and hopefully army build the zombies and Renegades Cobra soldiers. I also want to get the BBTS 7-packs.
Retaliation: I'm planning to want a lot of the movie toys, so if they end up being unappealing that will make my wallet very happy. Firefly, Snake Eyes, Roadblock, and Zartan figures will be a must, even if they aren't great.
Marvel:Avengers: I'll pick and choose these guys. Black Widow, Loki, Hulk, and Hawkeye in the 3 3/4 scale are must haves. I might get Cap and Thor, but I'll probably pass on Iron Man. If figures of Coulson and Nick Fury get made, I would love to have them.
Here's what will be extremely tempting:
Lego: The LOTR sets will be super hard to resist. I'm sure the price tags will help me avoid them, but if I break and get a small set I'll probably collapse and get most of that line.
Walking Dead: I love the show, but the price and scale aren't my thing. It was hard to pass on the comic figures this year, and I'm sure it will be even more difficult to pass on the TV figures in January.
misc 3 3/4" figures: I already got a handful of Crysis 2 action figures this year, and I have never played the game. With toys from Ghost Recon, SOCOM, and The Hobbit on the horizon, I'm sure I'll cave on several extra action figures I shouldn't be buying.