Can anyone recomend a good intoduction to C...

[Kurt B. Kaiser]

And once you've read K&R, try Kernighan and Pike, "The Practice of
Programming", which has good advice on C style, design, and test.

Harbison and Steele, "C: A Reference Manual", when you need a language
lawyer.

Learning a language is more than absorbing the syntax, you need to
internalize quality examples to gain fluency. Look at at P. J. Plauger,
"The Standard C Library" for many short codes written in the C idiom. 

A most remarkable book: Don Knuth's "Stanford Graphbase", which is an
*extended* example of C programming in the literate programming style.
You can actually sit down and read the code like literature, there's a
gem on almost every page.

In a hurry? K&R followed by browsing Plauger. 

Kurt B. Kaiser