“Man, I wish I could work with *so-and-so*!”
What’s stopping you? What are you afraid of?
Start a conversation with them! On their blog, in their store or their Facebook page. Talk with them. Be polite. Invite them to coffee or a lunch. Treat it kind of like you would dating (without the romantic portion).
You are amazing. Don’t forget how awesome you are but don’t your ego get in the way.
Who knows? They may be just as interested in meeting with you!