Lessee...
Saturn and all tooling are gone or unusable. There are some odd bits laying around still, but nothing worth making a rocket out of. There's not even a complete set of drawings, and those manufacturers still around in one form or another will have crossed the threshold on archival periods for their records long ago.
Energia--also gone, not worth rebuilding.
We have several good options for boosters, we don't need to resurrect the past. Any of DIRECT/Jupiter, Not-Shuttle-C, or Ares (particularly an Ares I with "Ares 4" config) could work and be cost effective. Especially if we don't throw the system away in less than 10 years, like Saturn Ib/V.
The problem isn't options, it's leadership and consistent funding. Ares is over budget because it's been underfunded for the last 3 years as a result of continuing budget resolutions for NASA rather than real debate about what should be funded and for how much. Not trying to be political here, just stating how the current $3B hole got dug in the first place. Plenty of blame for every side.
It's been said all along that if the money isn't paid in early, it'd cost a lot more later and that would blow the whole funding plan. Check and check.
Anyway, the Augustine Commission has done a pretty good job of covering options (they are explicitly not recommendations, as reported by the media. All reporting I've seen in mass media has been malpractice-bad.) Now, it'll be interesting to see what happens. I'm expecting Congress to grind along through their hearings, come up with some suggestions, then the White House will make statements in another six or eight weeks. That will be the first time there'll really be "recommendations" worthy of discussion. Until then, it's anyone's guess.
Any of the "middle of the road" scenarios from the Commission on HSF or a pastiche of them would result in some reasonable work being done over the next couple of decades. The high price options are unlikely, and the "within 2010 budget guidance" options are less than a holding pattern.
All I can say is that if you're interested, write physical letters of your own composition by hand to folks in Congress. Whether you're a U.S. citizen or not, whether you favor human spaceflight or not. That's what it takes to let them know anyone even thinks it's an issue.