The Czech equivalents would be the same as given in the reply to your other post - prima, senza, dobrý, paráda...
I perceive "cool" as being less intense than some of the Czech equivalents offered. Definitely less strong than boží (literally "divine") or bomba, which I think would be better equivalents for "awesome" or "amazing".
in Brno we say "špica" (translation: "peak" or "edge" as in "cutting edge of technology" = "špičková technologie")