in the past i have asked this of 3 english clients and they have all said .co.uk or .com, never .eu
my programmers haven't created sites in .eu either, i just asked them.
tim
I wouldn't bother with .eu, for brand protection or investment. In Europe they mainly use their ccTLDs, such as co.uk, .de, .fr and .it, or they use .com.
The ones that are most active on the aftermarket are .co.uk and .de.