I have the Medela PIS that I got with my first son (7 years ago). The hands-free system involves some plastic pieces that slip over the horns and rubber bands that are attached to the bra and then hooked over the plastic. With my first son, I used Medela bras with fabric loops for attaching the rubber bands. I was able to pick up a couple more with my second son, but it looks like they're being discontinued. I'm not crazy about the bras anyway, as they tend to rub my skin after a while. Right now, I tend to wear my regular soft-cups and only use the Medelas when I know I'll be pumping.
I would love to have a new hands-free system, preferably an easy one for when I (hopefully) start back to work this fall. I'm large-chested (42 DD right now, 38/40 D before the pregnancy), so I need some support, which is something that seems to be lacking from the set-ups I've read about online.
Any suggestions out there?