Here is the one I'm working on http://imgur.com/a/0lYpd#0 Its a private server, played on by myself, my dad, my sister, her boyfriend, a gaming buddy, a 4th cousin, and occasionally one or two of his friends. We're playing FTB Beta A Pack 1.4.2, and eagerly waiting for an official update to 1.4.6 that includes a functional version of mystcraft that works with railcraft (we rely on the two heavily). The only modifications we've made are the reduction of uu cost to 1m (still significantly more expensive than vanilla ic2). We're operating under the limitations that we have to delete all enderchest data every server reset, and that railcraft's energy carts can't be made for reasons beyond us. So what have you built? What do you want to show off?