Since, ideally, your baby will be getting your milk supply started, then you probably won't need a hospital grade pump. Those of us who pumped before we ever nursed became good friends with the Medela hosptial grade pump, but for part time pumping a Pump-in-Style should be good enough. Some have menioned other brands, and I know they work for some poeple. But, Medela has mastered the suck, release cycle similar to how an infant nurses. This makes switching form pumping and nursing easier, as your body gets similar (obvioulsy not the smae) stimulous.
I second the only buy a new Pump-in-Style. They are not designed for more than one user. The hospital grade pumps are (thus why they can be rented.)
Hope that helps.
ds Ezekiel 1/2/02 (34wks due to pre-e)