Update: BonkEnc has been updated to the latest version as well as a pre-release. See HERE.
BonkEnc Portable is a great audio converter that can replace the undeveloped winLAME, CD ripper to replace the slowly developed CDex, among other things.
It's a really fantastic utility, please give it a try and let me know how it goes. Try using all of its function portably I wanna make sure it works right.
I apologize if the icon looks crummy, I was having icon problems.