Joel,
Most of your time will be spent on learning the .NET framework, and how to go about things using .NET, rather than the exact syntax of one of those languages. My journey in .NET is early on, but I think if you become proficient in .NET in one of those languages, picking up the other would be a snap.
Here is an interesting blog...
http://www.lhotka.net/WeBlog/PermaLink.aspx?guid=ec218e39-9136-442c-98f8-cff081b80ccdI'm learning C#.
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>Please give me your thoughts, should I go to VB or C # ?
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Steve Gibson