I've been a big critic of the SureFire lamp's lack of resilience for some time. I experienced it myself. However, I've shut up over the last year, because I haven't been hearing stories of broken lamps, and in fact have been hearing stories of newer SureFires getting whacked around pretty good and still going fine. Certainly, I've beat the hell out of my E1, with no ill-effects. I've bashed up my M2 a bit also, not as bad as the E1, but it's still going as well. I'm withholding judgement at this point on the resilience of the lamps, since it is looking like it may have improved.
The waterproofness, or lack thereof, still irritates me. It doesn't seem like it would be that hard to make the thing waterproof, but what do I know.
My ideal light would be a waterproof E2 with a plastic body. The metal, unwaterproof E2 is as close as it comes, and I think I'll be happy with it.
Joe