Nope, 60D and no battery grip. Not really on the horizon in the near future either, I find the battery last ages as it is, and like the size. When I was using the 400D I needed the grip, but not now.

Thanks for the link to camdapter, I'll take a look at their stuff.

I'm swaying towards the RS-7, it looks slimmer. Only thing I'm not too sure about is the clip release on the back, would be very concerned that someone could unclip it and grab the camera. Does the RS-4 have one?