EDIT 2010-9-6: This fit has been superceded by one which is better at tanking but less good at scouting.
So let me tell you about this hilarious tengu fit. It has 22k EHP, afterburner and microwarpdrive and each rig is a different type. Oh, and I'm flying it.
What? Well, maybe we should start at the beginning.
At this point I've been at war for more than six months. If you read back through my posts you'll find two in which I talked about carebearing; since Atlas attacked geminate in December I've spent a total of 8 days earning isk.
A couple months ago I realized that there wasn't really an end in sight, so I decided to do some cross-training in order to have one character able to do both capital and subcapital combat.That way I could keep one on the front while carebearing at home. This has finally come to fruition (or it will in 3 days... funny story, my 45 million skill point capital pilot can't fit an RCU2). With the war at what appears to be a lull - sometimes going whole hours between fleets forming - I've had the opportunity to try plexing with two characters.
What I found was that the ishtar sort of sucks for killing things. It would be a lot better with perfect skills - and especially T2 drones - but the slow drones and anemic DPS just didn't cut it. Ships that do actual damage can't tank, and with two characters the only option was to have the scanning and scout ship also tank. This is where the T3 comes in.
This is a multi-role plexing utility ship. It does three things very well:
1. Scouting. It's immune to bubbles and warps in 3.6 seconds; almost no matter what you jump into, the only way you're going to be targeted by something is if you screw up.
2. Scanning. It can scan all signatures including ladar hacking sites, which are the hardest I've encountered. The sisters probe launcher and scan strength rig are necessary for this; with nearly perfect scanning skills the ladar hacking sites can be tricky.
3. Tanking guristas. It's cap stable (the CCC is necessary for this) and tanks nearly as well as an ishtar. Supplemented by a DPS ship it can tank pretty much anything as long as an effort is made to reduce incoming damage. It also has a significantly larger hit point buffer, and can tank the smartbomb in guristas military complex without going into armor.
Someday this is going to look horrible on my killboard, but you know what? I'm not really concerned about that. This setup does what I need and does it extremely well, in addition to being a joy to fly. It's worth every isk to me, and the fact that it's already paid for itself five times over is just icing on the cake.