The Democrats had a very unique opportunity this year to take back what was lost in 1994. Unfortunately they have blown it in a colossal way. Instead of spending time saying what they were going to fix, like the Republicans did in 1994 with the Contract with America, they've resorted to vague statements about "real" national security and how much better they are than the scoundrels that are currently in office. If they'd spent 2005 creating a detailed plan with easy to understand bullet points like the Republicans did in 1994, we'd be in for a landslide power shift.
Fortunately though, they haven't hurt their chances. All of the reputable polls show things shaping up to be a 50/50 congress and a 216D - 219R senate. All in all, not too bad, but it could have been a lot better.