It's my favorite time of year - the Devoxx presentations from last year are now all free on parleys.com!
Of particular interest to serious students of computer science might be the software process talk I gave last year:
Practical Best Practices: Totally Better Best Practices for Practical Practicers
This is the same talk that I gave at the Big Android BBQ and Droidcon London (which were both posted last November). But each one is a unique snowflake, because my complete lack of rehearsal guarantees it. Also, there's a part at the end (my favorite part) where I take questions from the audience. I did that all of the times I gave that talk, but all of the questions were different (it would be odd if they weren't, since they were all given to different audiences in different countries. If I'd gotten the same questions, it would be odd and slightly disturbing and I might hire a bodyguard to protect me from geek stalkers).
Also, I like the Devoxx version because the recording and presentation quality of all of their talks is so high. When you're done with this one and you've learned everything you can from it (actually, that will be true without watching any of it), check out the other talks for the conference; it's a great developer conference that I highly encourage people to attend if they can.