Where can I look to get started with writing MSIL in c#?
You can start with the Emit namespace MSDN documentation?
Edit by slugster: because this was marked as the answer i have added this link to the doco, hopefully it adds some more substance to the answer:
http://msdn.microsoft.com/en-us/library/8ffc3x75%28v=VS.100%29.aspx
Introduction to Microsoft’s IL
Expert .NET 2.0 IL Assembler(Book)
[You can examine your compiled code with an IL viewer like Reflector or ILDASM.Exe
A nice tool to use is ILIDE#, even though the page is no longer working you can get it from here: http://nida.se/ilide/ILIDE_v3.zip
I used it when I wanted to learn how MSIL work, back when I was doing a little java->MSIL compiler back in Uni.
EDIT:
uh, i forgot to write what it is, well its a IDE for writing, compiling and debugging IL, and if i recall it also has some intellisense, pretty nifty app ;)
Nice tool is C# compiler. Write some code as a method, compile it and run ildasm on it. If you have SharpDevelop, compile the program and select Tools -> Il Dasm. It runs ildasm and shows MSIL the compiler generated.