I currently work for the Consulting Practice of the largest Utility company in Britain and we're always recruiting!
The practice is still in its infancy so lots to do in terms of development, but you do get to work on everything from the largest systems integrations in industry (SAP) to Business Strategy programmes which sometimes last years.
My major criticism however is the involvement on my Practice on Projects and Programmes compared to externals and our reputation against these Consultants as we are simply perceived as busybodies from IT. Then again, all the more reason to join and develop he Practice as an industry leader!
Hope that helps,