I know the 2 Mi26's in Sudan are being managed by a company from South Africa that specializes in Russian Mi's and Kamov's..check out for interest.
www.titanhelicopters.com
...they had a Mi26 in SA doing ship salvage about a 2 months ago, operated by Russian crew who seemed to do a very good job.
I used to fly for Titan and I know the rates are a lot cheaper for the Mi8's than quoted earlier in this post. The maintenance is also very professional and a South African AMO has the only (as far as I know) fully Russian factory approved Western engine overhaul facility.