Another idea too - if you can stomach leveling up to 73 is to just do the GH dailies till ya hit 80. The quests are 20k exp each and theres about 10 that you can do in under an hour. At ~1.5 million exp / level, you'll be clearing a level per 7.5 days (and only 7-8 hours played to boot). I did this a LOT with my first team while I was leveling them up to 80; in fact, I hit 80 while only doing: Howling Fjord (all quests), Dragonblight (all quests), Borean Tundra (70% of the quests), Zul'Drak (70% of the quests), Grizzly Hills (80-90% of the quests), GH Dailies, and about 15 quests in Sholazar Basin. I never touched Ice Crown, never touched a single dungeon, and I didnt even see the Storm Peaks.

Cheers.