OK, after returning from almost 1 month of business travel, and reading this thread, I jumped in the wagon and bought my own Matzes a1k.org Graphics Adapter.
So question, and I should have asked this before my purchase: Do I need any additional accesory(ies) to install the card in my A3000D, w/A3640? My video/gfx Zorro slot (the very top one in my setup) is free since I don't have any gfx card at this moment.