These are both very nice! Personally i would use the one that is ALL orange/yellow based, not the blue earth one. The colors seem to clash for some reason, even though there arent that many... *shrug*
The only bad thing i see, is that the land portion of the globe [the US and south america] seem to be "way below" what would actually be the surface. So unless you look really close, you cant tell its a globe-
What in the world program do you use to make such amazing icons. i can make some cool pics now and then but i can't get them to work as icons, i just need to figure out what program will save my png's and gifs as *.ico's without losing quality.