Need ideas on what projects to work on? This list may give you some inspiration:
Technical

• Building a backup infrastructure with AMANDA, Bacula, or some other piece of software
  • What backup strategy should I use?
  • What sort of backup medium should I use?
• Building a Windows/*nix box
  • "What sort of steps would I have to take in order to setup a plain old box with Windows/*nix?"
  • How do I set up print/file/whatever service on Windows/*NIX
  • How can I automate installation of my Windows/*NIX machines?

Business

• Budgeting
  • How do we effectively make room in our budget for building what we want to build?
  • How can I make my case to management effectively?
• Writing computing policies and agreements
  • What do I have to take into account before writing a usage policy / SLA's?
  • What kind of language do I use when writing these policies?

Soft skills

• Negotiating in favor of a technology, position, etc
  • How do I convince everyone to take a look at my solution?
  • How do I get everyone on board with a particular position?

Academic

• Writing a (technical/scientific) paper/book that will be published.
  • How do I start? Are my findings correct?