Ran into the same problem w/ my Toshiba laptop. Toshiba wanted up to $80 for a replacement. Found a knock-off on amazon.com for $15...works just fine.
You try Tigerdirect.com?
Just go to Amazon.
My puppy decided to use my power cord as a chew toy.
I was going to replace it but had wanted a fancy Schmancy cord stripper for years, so I went to Radio Shack and bought one.
Stripped the wires, taped em together and this Saturday I will buy some liquid plastic and enclose the cord again.
Alternatively, you could try Radio Shack or Walmart for a Universal Charger. I picked one up for one of my flashlights and my GPS.
Batteries Plus also sells power cords. Their website sucks loudly but play with it and if they have what you want you can go to the local store and pick one up.
If you are near a Fry’s electronics they also sell replacements.
Here is the result for Batteries Plus:
Store Location:
http://www.batteriesplus.com/store_locator/zip/02127.aspx
Product availability:
http://www.batteriesplus.com/products_search/440938-Asus-G72G.aspx
http://www.batteriesplus.com/products_search/640001-Asus-G72Gx.aspx
Put ‘ADP 150NB D’ in Google.
It brings up many listings from about $49.
cheep answer is ebay,
expensive answer is igo.com where you can get an adapter that will power 2 devices from a wall outlet or car. just make sure you get the right power tip ($7)
Ebay also has them.
Amazon or Ebay.
Any universal AC adapter should work, provided it meets two conditions:
1. The output specifications need to be identical to the specifications of the original adapter.
2. The barrel or other connector going into laptop must also be identical.
My suggestion take it in to Radio Shack and “build” an adapter with their universal parts. That way you can test it there and make sure it works before you leave the store.
Radio Shaft has a pretty decent selection of generic adapters with a selection of voltage and plug configs, and if you can’t stand going in there (I try to avoid it if at all possible), Batteries Plus has a good selection of stuff like that, both OEM and aftermarket I think, if you have them near you.