Its $72 to buy new cartridges at Best Buy for my Z715, and I'm a cheapass. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=32795&item=6726432327&rd=1 Anyone ahve experience with these refill kits that are supposed to be for specific models? Sounds to me like the colors would be identical yo OEM. Wanna kill these ads? We can help!