Did anybody of your guys/girls already bought something like that? I do not want to ruin my printer.
Tried them once, no problems at all. Only gave up using them because I found a service that would deliver them to your door and take away the old ones for only slightly more money.
Generally speaking, the printer manufacturers don't like you using them, but that's because they make their money from supplies rather than printers.
edit : I refil the cartridges on an old battered printer at work, and they do the job fine.