This is a server sponsored in part by the MHS Robotics Team, on which I am the head programmer. The server is constantly maintained (head programmer for a robotics team that made it to the World championships here, just so you know I can deal with this), and includes a number of custom plugins written by yours truly and completely exclusive to this server. We represent a blend of PvP, Survival, Creative (highly limited), and challenge (we have a number of survival games and are always open to suggestions) oriented Minecraft. We are, above all else, flexible. I could not count to number of times I have installed plugins or made new worlds with specific themes just because I noticed players discussing them. We are not white listed, but you will need an admin to give you build perms once you log on. There is usually at least one admin online.
Heard Enough? Here's the IP:
Server Specs: Dual-core 2.0 Ghz Intel CPU 8 Gigs of RAM crazy fast internet connection (if it's really important for you to know, I can measure it) Ubuntu Server 12.04 LTS
TL;DR We are a very multi-faceted and fun server with a number of well regarded plugins, including several written specifically for this server. You should totally join.