Here is a very good "quick" list of other candidates and their principal weaknesses, with many thanks to PhiKapMom:
Romney -- waffles on issues; Mormon factor of the Church appeasing illegals
Hunter -- cannot raise the money necessary, 30 years in the House and would have made a good candidate in 2000
Tancredo -- not a chance -- too polarizing
Tommy Thompson -- no charm or ability to get votes
Sen Brownback -- heard him speak, put you to sleep don't agree with him on Iraq -- too wishy washy
Cong Paul -- doesn't stand a prayer of winning -- doesn't support a lot of Republican issues
Newt -- too polarizing to win as President could be okay as VP if he decided to take that but he quit as Speaker
J.C. Watts -- too much baggage not running
Gov Keating -- pulled out of the race -- would make a very good Attorney General
George Allen -- lost the Senate race and ran a louzy campaign
Cong Pence -- lost the election for Minority Leader
Gov Sanford -- lost a lot of ground not getting in the race so looks like he won't run
Jeb Bush -- not another Bush running for the WH
Bill Frist -- too wishy washy and was in charge when we lost the Senate
On the post from which I "borrowed" this list, PKM stated that she wished there were a whole pack of great conservative candidates from which we could cherry-pick the very best. So do I, but we got what we got!
Just found Rudy's speech in audio and video from the 2004 GOP Convention at the following link:
http://www.washingtonpost.com/wp-srv/mmedia/politics/083004-15v.htm
Just contributed a bit of my money to gohunter08.com somewhat idealistically, but more realistic than most of the starry-eyed Giuliani posters here. They sound like he's running for class president except for his excellent WOT credentials. But Hunter has those plus he won't unleash trial lawyers on the personal protection (firearm) industry the way Giuliani did.