I own 2 of these
http://www.hondapowerequipment.com/ModelDetail.asp?ModelName=wx10
I purchased 100' 1" hoses from grainger.
http://www.grainger.com/Grainger/wwg/itemDetailsRender.shtml?xi=xi&ItemId=1613547755&ccitem=
reduced to 3/4 and they will run 2 large sprinklers. Northern Equip. has a great one.
http://www.northerntool.com/webapp/wcs/stores/servlet/NTELargeImageView?rfno=200314324&storeId=6970

For longer distance i have a
http://www.hondapowerequipment.com/ModelDetail.asp?ModelName=wx15
I have 500' 1 1/2 pvc reduced to 200' 1" and 2 3/4" 75' to sprinklers. This set up has a head lift of 80+' to water a future homesight on top of hill.
I had a local co. make me 2 150' 11/2 and 2 100' for less connections..."Taylor-made hoses" in San Antonio.
Helpful info
http://www.hondapowerequipment.com/pumcho.asp#pumpSelect
scroll down to use pumpselect online