Good Glyph/Icon editor suggestions?

I need a graphic editor to help me make/modify my glyphs,icons, gifs, etc...

I have searched the ngs and have found the following, but I sure would like to hear some comments (pros and cons)... I have very limited time and do not want to have to learn one product only to have to start over on a different tool later!<g>

AWIcons
http://www.awicons.com/awicons.shtml

ArtIcons
http://www.aha-soft.com/articons/

IconWorkshop
http://www.axialis.com/iconworkshop/

Thanks for any input!
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