I have had the SG-05 (same internal dimensions as the SG-06 without the fancy front panel)for over a year now. Had buy the 450w silverstone power supply seperately. The 450w is minimum to run a card with two 6-pin pcie power connectors. My HD5850 had trouble with 300w. Running a i7 870 with DFI LP itx, 1TB WD Green. There isn't a faster Radeon that fits this case 9.5" space, but now I am looking at EVGA GTX 570 HD (9.5") as an upgrade. However I don't like giving up the 3-screen (via Eyefinity)capability. Maybe someone will release shorter version of a HD 6950/6970 like EVGA did with the GTX 570.