Is a 2nd hand pump worth getting? It's much cheaper but some friends say the hygiene factor should be given some thought too....

Even replacing the parts in an open system does not ensure that it is free from contamination. You really need to get a closed system if you're considering a second hand. Other than considering hygiene issues, there is also a risk of it giving up on you (by then there is usually no warranty left). You need to take into account travelling to the service centre in case any repair is needed, the costs involved, and if repair is too costly you may have to buy another pump at the end of the day! What you should know when buying a used pump: http://kellymom.com/bf/pumpingmoms/pumping/buying-a-used-or-new-pump/ If budget is an issue for you, consider getting single electric pumps or manual pumps. Manual pumps are great for travel and they are less expensive as well. Some mummies have also noticed that manual pumps mimic baby's suckling actions more and give them a better yield than electric ones.