tf2store.com
Greatest site ever.
Oh, people there aren't morons who select every fucking thing in their backpack to screw up search results?
GRU has -50% damage on it though.
I haven't found them yet, but given how infrequently I actually punch things as a heavy (especially with the short spin-up time) I'd be willing to use them just for helping a medic build their uber when a demo/soldier won't. If they're a bad medic that only heals the heavy then it'll be even more effective :V Medics should be spreading the love, especially since it gets you those ubers/kritzes faster.
I've also been a bad person and taken to using Natascha more frequently as of late. Aside from the fact that the MANN-conomy update has produced shitloads of scouts and kamikaze pyros heckling medics and engineers on open maps (the Shortstop seems to be pretty damned good at taking down buildings...much better than the pistol or scattergun at range), the number one thing that has been pissing me off is little bitches challenging you to a duel and keeping a pocket medic on their ass at all times to make sure they can run away.
Naturally, I'm not letting that happen - you engage, you stay until one of us dies :V