With how bad our situation is, nobody could achieve full economic repair in 4 or even 8 years time, assuming we keep the pattern of 2-term Presidents. But I believe it is possible to turn things in the right direction and atleast maintain stability while getting back towards more solid ground. Whether or not we get there is anyone's guess, but I think we can make progress towards it.
Also, as a side note, the Republican party is falling apart behind the scenes. McKinnon, one of McCain's top aides, said he would resign from the campaign rather than compete against Obama. On top of that, McCain has begun dismissing campaign staff with connections to potentially damaging groups, and high-level lobbyists make up a significant portion of his campaign staff.
Still, I'll agree with you that the weakness of the dollar and the resulting increased necessity of sacrifices among even the upper middle class is getting out of hand. What happened to the days when a middle class family of four could live off the 9 - 5 incomes of two parents, living in a two-story house with a two-car garage, and still have the time, money and energy left to go out and enjoy themselves sometimes? Honestly, all I've wanted for years is to eventually be financially comfortable without having to break my back on a daily basis and still be able to enjoy myself at the end of the day. Y'know, the American dream in a nutshell. But that's become a pipe dream. But I sincerely hope, and believe, that it will not stay that way.