There's some good advice here and hiring a man and a van is pretty cheap, especially if you're moving home and need a lot of stuff moved. However, if you're buying new things, I found the department stores like Saga and Ripley have some great offers online and they do delivery for a nominal fee. It seemed to be cheaper than buying in-store and asking for delivery there. You also get a year's guarantee (sometimes two) and you can check your stuff when it arrives to make sure it's not damaged - if it is, you refuse to accept it and get them to take it back.
They also have one day special web offers and ahora o nunca offers for stock clearance. I got 300 soles off a washing machine and 200 soles off a TV on a one day internet offer at Ripley. It cost me an extra 10 soles for each item to get them delivered. They came three days after I ordered them, but I think you pay more if you need them quicker or at a specific time. Charges can also vary from district to district and if you live on a higher floor and things have to be carried up the stairs. Make sure and and double check this when you make your order.
For furniture, it's worth having a look at Plaza Hogar in Surquillo. I don't think it's as cheap as people make out, but if you haggle, you can sometimes get a reasonable deal and they will deliver. Make sure and get a quote before you buy, then go and compare it with something similar in the department stores.
If you've got a Ripley or CRM card, the offers are even better, but never pay on instalment as the interest charges are extortionate, over 50%.http://www.ripley.com.pe/webapp/wcs/sto ... ogId=10051http://www.falabella.com.pe/falabella-pe/