This comment is interesting (as well as the other 2 children saying they also use Pokemon for host names), as there has been a study about how kids had fantastic abilities at recognizing Pokemon, but could not achieve the same levels of memorization with flora and fauna:
http://www.ncbi.nlm.nih.gov/pubmed/11924673
This inspired a researcher to create a card game similar to Pokemon, but for our biosphere:
http://phylogame.org/
We do as well. The NAS is Snorlax, the GPU server is Pikachu, and the workstations are Eevee and Vulpix. I would have named the printer Ditto but apparently IT has a policy on printer names.
My old department at the UvA did the same in the past, new sysadmin changed it to European capitol cities. (I'll never lose muscle memory for typing sandshrew and farfetch.) Come to think of it, the DNS server should've been called PokeDex...
(btw, the mail infra consisted only of carebears... I'm looking at YOU J.P.!)
There's something super memorable about Blastoise, Slowbro, Squirtle, Ninetales, Jigglypuff...
I also color my tabs the color of the Pokemon for fast reference.