At the moment I'm learning Jquery and I'm using youtube for my tutorials which is great.

I've downloaded the Jquery toolkit and I'm just playing with it.

Just wondering what are the best resources to use? What do you use?

If you're learning jquery there are quite a few resources out there. For online tutorials, I'd use w3c school http://www.w3schools.com/jquery/default.asp to give you an idea, then don't forget to look at the jquery api for reference http://jquery.com/ - if you google for a method say jquery hide() it will direct you to the api http://api.jquery.com/hide/
Also these are very very good tutorials http://net.tutsplus.com/articles/web-roundups/jquery-for-absolute-beginners-video-series/

Also, I think that books are the best allies, so try to find something about jquery. I have recently read this http://www.amazon.co.uk/JavaScript-Ajax-Dummies-Andy-Harris/dp/0470417994 and I am looking at Jquery novice to ninja - Earl Castledine, and both of them ar okish.