Modern logo needed for consulting company

PI² xxx (where xxx can be several things)

PI² Consulting is small consulting with 2 branches.
One part of the company is focusing on Business Consulting (mainly Time-Driven Activity Based Costing and Strategy Focused Organisation).
The other part of the company is providing IT related services such as webhosting, software development, agile software project management and IT Strategy.
We often refer to the mathematical number pi. Pi is a real number and not an imaginary number. So we try to express that our customers get real value for their money and not imaginary stuff that is dreamed up.

In the business consulting branch we are often subcontracted by other consulting firms. Occasionaly we work directly for big multinationals.
The IT part focusses on SMB and non-profit organisations.

We are looking for a logo in which we can replace the word consulting with other words (primarily the services offered).

We were thinking of a combination of a sphere, the symbol pi and the square (as in pi²) followed by the Consulting, consulting or other words i.e. domainnames, hosting, software, ...

The tagline (not imaginary, but real) under the word consulting in a smaller print is allowed as well.

Both transparent png and a colored background (blue-ish?)
But feel free to experiment with colors.
webfile format: layered png (fireworks) or layered .psd (photoshop) because we should be able to replace the word consulting with i.e. software, hosting, etc.