TMZ has a photo of Gwen Stefani checking out some Medela breastfeeding supplies in an Orange Country store. According to them, she also purchased a breast pump.
I use the Medela Pump in Style Advance which is considered to be one of the best (non-hospital grade) electric pumps out there. If I had Gwen’s money, though, I would spring for a hospital grade one. They work better and faster than the Advance .