Came across these Visio Stencils which may be useful in the future:
- Visio Cafe : Collection of Visio stencils for different hardware, including HP, IBM, Aruba, EMC and others
- Integration Patterns : More stencils containing 51 integration pattern icons
- Misc Stencils : A whole collection of stencils for everything from Aerobatics through to Video Game Stencils
Enjoy