3D graphic card specific and recommended for SAM460EX

[Spectre660]

This one looks like the fan will block the PCI slot also.

Yes, that card uses DDR5, so it should work fine.
Great price too.
I might have to buy one myself.
That should really accelerate you SAM's performance.

[Spectre660]

This model does use DDR5.(It is the one that I use) The next thing is making sure that the fan on the low profile card is not blocked by the PCI sata card .

One option but you give up the pciex1 slot .
http://amigaworld.net/modules/newbb/viewtopic.php?topic_id=40347&forum=33#763015

Better option but you need a large enough case  and a pcie extender cable.
http://forum.hyperion-entertainment.biz/viewtopic.php?f=17&t=2649&start=10#p32790

Double check to make sure the Visiontek card uses DDR5, DDR3 cards won't work under OS4.