Training courses/conferences

Hi all,
As part of my development as a web designer my boss has said that I need to go on either a training course or visit a conference in the next few months.

First of all I was going to pick the future of web design conf. but someone from my team has already picked it!

I’m considering a jquery course but based on my skills I feel that I might be wasted on there as they cover so much of the basics! I’m thinking possibly a design course but I don’t even know where to start looking!

My background - mainly a web designer (8 years experience), very strong HTML, CSS and about 2 years in jQuery although that and Ajax could still be improved.

Any help appreciated.