Rudy Giuliani gets Pat Robertson's support, and Sam Brownback comes out for John McCain. Ron Paul and Mike Huckabee have stood out to me as being exceptional. I'm not sure anyone notable would use their power to support Paul, but if he plays it right Huckabee could be the choice candidate for social conservatives and those who want a candidate different from the establishment (How many politicians can say that all their children have graduated from public school?).
On the Democratic ticket, who shall get St. Al Gore's support? And isn't it amazing that in 2004 Al Gore's support was a kiss of death but three years later it is getting the support of a Nobel Peace Prize winner? My, how times do change quickly.