telliott, like you read, I have the ofe. With what I have now it does not slip and I am very hard on my clutch. I am gonna swap my injectors to m4's and my turbo to a sps 62/24 as soon as the weather permits. You can see what I put down on the dyno in my sig, my problem is that I am not burning all of the fuel that I have.
After my parts swap I am told I will be aroud the 500-525hp mark give or take. I think that an ofe would hold that power if I babied it, but I like to lay into it every now and then, smoke the tires, black out an intersection, etc. Due to the way that I drive I will be upgrading to a dual disc when the funds allow. I don't beat my truck up but I do like to work it good from time to time.
In your case, as in mine, depending on what you like to do... I would probably get an FE or think about a dual disc.