We bought a medela pump in style. Cost to buy one is expensive but we originally bought a medela mini and the motor blew on day 3. The medela mini is only to be used for no more then 2 express sessions a day we found out. If you use it for anything extra and something does happen you aren't covered in the warranty. Just a little info for future reference. In my situation I needed it so it was money well spent. However when i had my firstborn I used a kanesten (sp?) hand pump and that was enough for me. Hand would get a bit sore but it worked for me and it cost less than $40 to purchase. So I wasn't disappointed when my son weaned, the pump cost very little.

Good luck.