Hi All,
Thanks MadridMan for the great site! Very informative! I will be leaving for Madrid on 23rd of March and staying until 6th of April. Below is where I want to go, but I'm not sure what forms of transportation to use between the cities (air, train, or bus). Please let me know what would be the most economical & cost effective. Thanks!

Madrid-Toledo
Toledo-Seville
Seville-Granada (or possibly adding Alicante)
Granada-Barcelona
Barcelona-Madrid