Were there any awesome C# tutorials you found that helped you learn it? Or any books that you thought were particularly successful? Any that should be avoided?
UPDATE: Tons of good answers, thank you all! To clarify the earlier question, hobbyist with only light programming experience previous. Working through online tutorials currently, probably going to pick up Head First C#.
C# Station has a fairly straightforward introduction to C#. You may also want to check other Stackoverflow questions which have already covered this topic.
I wouldn't go anywhere near anything entitled Learn C# in 24 hours/7 days. Absolute tripe. I like apress titles but it really depends if you need something for a C# newbie or a programming newbie.
If you are a programming newbie consider http://www.apress.com/book/view/9781590598696, if you're a C# newbie but have programmed before get http://www.apress.com/book/view/1590598849.
Assuming that you want to use the most recent features I'd recommend the following book.
Beginning C# 2008 From Novice to Professional
I used a previous version specific to ASP.NET with C# and found it quite useful and would recommend it.
Ironically I've just answered a similar question. I'm using Head First C# and finding it readable and enjoyable. A good mix of info and exercises. It's an interesting layout, but possibly not for all so do have a look before you commit.
If you had no experience with OOP before I suggest to read something about it too.
Searc in Google...
In the beginning, and still today, these files help me greatly. Enjoy!