I agree with Fursphere 100% on this.

If all of your characters aren't in full tier 7/7.5+ you should start a raiding guild or join one. I'm only one week into being 80 with my new team, and the only things I'm missing for one of my shaman are her tier pieces, which I'll get this week. All of her other gear is raid dropped (mostly 25-m). Funny thing too - before one of my raid shamans received her emblem of valor, she received an emblem of conquest from 25-man ulduar. Let me tell you, riding around on a motorcycle with only 55k hps (she was in quest greens and non heroic dungeon blues when I first did Ulduar) while everyone else has bikes with 550k in the FL event is hard mode (but its also fun as hell). :thumbup:

Other than that, I've been trying out new things. Mainly, since hitting 80 with this team, I've just been running the characters solo (gearing them all up independently... 5x characters to run raids with = there's always something to do). I just setup Grid and Clique the other night for my resto shaman, and went out to heal a PuG Heroic UP. Needless to say, it went smooth and we only had one death (I stayed in Invgar's Axe like a nub). The list of "hard" heroics really goes out the window when you find people with mediocre to decent dps to run with. Plus I feel like the ability to do any heroic is worth a ton more than just limiting yourself to Heroics you can do with "your team". A few of my buddies who've dinged 80 recently have gone on to get their bronze drakes from the CoS timed event.

The other thing I would recommend is just going out and meeting people in the game world; you'd be suprised as to what other people can do for you. Like I say, I'm only a week into 80, and I'm being tossed whispers and group invites right when I log on, every day (with different characters, LoL). Don't limit yourself to only boxing - as you start to network, you'll find yourself participating in more and more events - that's what keeps me playing.