Please also note my own Dalek artwork adorning the wall!
July's purchase was a long overdue Ikea cabinet complete with light in the top. The Daleks needed a good dusting first though, but I'm very pleased with it... the oldest Dalek in there dates back to the 60s.
I think the collective term would have to be invasion - although now it's more of a confinement!
And, now they're all behind glass, there's no further risk of the cat inadvertantly setting off the talking ones at ungodly hours, and making me think the Daleks really had invaded!!