Crafty folks could probably make a fair lookalike out of PVC tubing and LED lights, but I'm guessing you want something a bit more upmarket than that. Here are a couple of options:

http://www.ylighting.com/bruck-v-a-chandelier-i.html
http://www.ylighting.com/varaluz-covenant-3-light-chandelier.html
http://www.ylighting.com/robert-abbey-candelaria-24-chandelier.html

Restoration Hardware has some similar options:

http://www.restorationhardware.com/catalog/product/product.jsp?productId=prod1159185&categoryId=cat1701013

http://www.restorationhardware.com/catalog/product/product.jsp?productId=prod2111633&categoryId=cat1701013

They come in other sizes as well.

I have this one in my dining room...only one tier though
http://www.overstock.com/Home-Garden/Old-World-9-light-Chandelier/2064093/product.html

Pottery Barn also has a couple similar options (one tier as well)

http://www.potterybarn.com/products/parson-8-arm-mirrored-chandelier/?pkey=cchandeliers-pendants&cm_src=chandeliers-pendants||NoFacet-_-NoFacet-_--_-

http://www.potterybarn.com/products/japser-round-eight-bulb-iron-chandelier/?pkey=cchandeliers-pendants&cm_src=chandeliers-pendants||NoFacet-_-NoFacet-_--_-

Etsy has a lot of lighting/lampmakers. Lamp making is actually a pretty easy trade, the toughest part is sourcing materials & drilling metal/glass/etc. Many of them will make custom sizes & finishes, too. For the best deal & most unique piece, I'd start browsing there, find someone who makes chandeliers similar to what you want, and ask them for an estimate for one in the measurements you need.

My dad made something similar (only one tier) out of a pot rack.

This is much more modern. I just hung this in my kitchen, it is fantastic. And works well if you are on more of a budget like me.

http://www.overstock.com/Home-Garden/Rae-6-light-Chandelier/6911429/product.html

This one is not exactly like the example, but it has a similar feel to the ones you like.

http://inlite.com.au/product/?id=6193&prv=%2Fproducts%2F