Learning Lisp

So /prog/ serious question - I'm honestly just hoping for a good answer. I'm getting more and more interested in Lisp - some people may think the Syntax and the functional concepts suck, but I don't; It's the opposite actually. I think it's really interesting.

Now there are more than one Lisp dialects:
    * ANSI Common Lisp
    * Scheme
    * Arc
Just to name a few I read about while informing myself about Lisp. (Arc seems pretty cool btw.) Would you suggest learning Lisp? I already know Python but am interested in learning more - specifically other programming languages and thought Lisp would be pretty interesting.

I'm just a bit worried about which dialect I should actually learn. I think I'm going to start with ANSI Common Lisp for now (since it's the standard) and maybe take a look at Scheme and Arc afterwards. What would you guys suggest me?

Also is Lisp, or any dialect of it suitable for general-purpose scripting? Basically the things I do with Python:
    * Webscraping
    * Text editing
    * Renaming files
Just to name a few.

I think lisp-1s are more straightforward to learn before lisp-2s.
Of course, Scheme isn't terribly useful outside of SICP
wut