studio,
Both of those products appear to be designed for "worldwide" use, so should work fine either at home or in Europe. I only took a brief look at the websites you linked, so didn't notice which plugs these are provided with.
One point to note is that although the Power Bars have a fairly high capacity, there may be limitations in the outlets these are connected to, due to the fact that building wiring doesn't use "branch circuits" as we do in North America. Some outlets (ie: the U.K.) are fused, so your gear may draw more current than the outlet is capable of supplying. Some Plug Adaptors may also have limitations on the current they're rated to handle.
As you'll be using the Power Bars with a variety of equipment, I'd suggest using only grounding type Plug Adaptors. Depending on which countries you're travelling in, you'll probably require several Adaptors. Grounding in some countries on the continent is provided by grounding "ears", while in others by a protruding ground pin. The grounding Adaptors for Switzerland and Italy are unique to those countries and not interchangeable.