If you're going to be shooting rugby, chances are you'll be out in the weather at some point. Neither the E-30 or the 620 are weather sealed. The E-3 is, and you can find some great deals on nice used E-3s by looking around. I bought one a couple of months back to supplement my E-1s and love it. I've shoot a couple of thousand images with it since I bought it, it's dead on. Great camera body.