Leveling to 80 before the next expansion

So, I'm trying to level my 73 Shaman to 80 before the next expansion comes out, but It's getting pretty annoying. I do mad damage since the last patch, 4.0.1, with my elemental spec, but at this level, none of the dungeons really have any good gear for me and I really hate wearing greens. I keep going to these random groups, and I have to say that it pretty much sucks because of course the players are using their alts, and I am so tired of crappy tanks that wipe the group and then leave. Then I have the misfortune of having a pvp server, so every time I start to get into a good questing grove, some jackass has to come down from a flying mount and kill me for the fun of it. Too bad realm transfers are so expensive, because I have multiple high-level alts. On another note, when I need a break from the grind of all too familiar questing, I go hunting for mines on my main, and that is a pain too. It seems like there just aren't enough titanium spawns in the northrend area. No matter which zone I go to, there are always at least five competitor miners and we're all searching for the 3 titanium nodes that spawn probably every 20 to 30 mins. I don't want to buy it for the ungodly prices on the AH but I really need it for recipes and to prospect. I realize that if it was more common it wouldn't be worth as much, but I don't want it to sell.