If Paul does well in fund-raising, I think the most he could do is lay a foundation for 2012. Too many things would have to change in the Republican party for him to get the nomination this time around. E.g. it's hard for me to imagine them nominating someone who wants to go back to the [link|http://www.house.gov/paul/congrec/congrec2006/cr021506.htm|gold standard] this time around.
Cheers,
Scott.