http://www.amazon.com/Accell-UltraAV-B087B-002B-DisplayPort-Dual-Link/dp/B002ISVI3U/ref=sr_1_1?ie=UTF8&s=electronics&qid=1260294111&sr=8-1
problem solved
It's not exactly a problem solved, as the adapters themselves are hit or miss, you either get a good one or a bad one. The first active adapter i got from Amazon didn't work, the second never made it to my house, and the third works great.
But yes, all of the active adapters internal bits are made by Bizlink. that means that Sapphire, Dell, Accell or who else, all have Bizlink parts inside.
Go for the least expensive one and hope you get a good one. Bad ones normally need extra power from a wall plugged USB, flicker constantly, do not show video and some have grey lines going threw the screen.. all of these can come in different combinations.
Here is a video of a bad active adapter.
http://www.youtube.com/watch?v=mRVV2w1Ib2o
Good Luck :P
-Tanshin