I've really gotten into drum DVDs over the past year or two and have built a nice collection.
Often, late on, after my young son goes to bed, I'll put a DVD on my PC, plug in the headphones so I can play it loud, and crack open a beer.
I find it really helps me unwind after a day at work - and I really believe my playing has improved.
There's so much fantastic information on these DVDs, that even if you take just one lick, idea, approach, philosphy from each one, you can't help but improve.
The only problem is here in the UK, they cost megbucks, due to import/shipping costs. Often they can cost £40.
Anyway, the DVDs I've really gone back to a lot are, among others, Modern Drummer Festival 2006, Steve Smith Standing On The Shadow of Giants, John Blackwell, Greg Bisonette and Jojo Mayer.
Can't wait for Modern Drummer 2008 to see Gavin Harrison, Simon Phillips, Todd Sucherman, Thomas Pridgen and the rest...