Installed sucessfully with Scientific Linux 3.0.3. Everything works properly except for 3D graphics.

The Good
Everything installed without having to do any tweeking.

The Bad
Only the VESA driver works with video, so there is no 3D.
It is only S.L. 303 that everything installed out of the box. In S.L. 301, it didn't recognize the SATA drives. In S.L. 302, the ethernet driver didn't work.

Extra Steps Needed

lspci

00:00.0 Host bridge: Intel Corp. Memory Controller Hub (rev 04)
00:01.0 PCI bridge: Intel Corp. Memory Controller Hub PCI Express Port (rev
 04) 00:1c.0 PCI bridge: Intel Corp. I/O Controller Hub PCI Express Port 0
 (rev 03) 00:1c.1 PCI bridge: Intel Corp. I/O Controller Hub PCI Express Port
 1 (rev 03) 00:1d.0 USB Controller: Intel Corp. I/O Controller Hub USB (rev
 03)
00:1d.1 USB Controller: Intel Corp. I/O Controller Hub USB (rev 03)
00:1d.2 USB Controller: Intel Corp. I/O Controller Hub USB (rev 03)
00:1d.3 USB Controller: Intel Corp. I/O Controller Hub USB (rev 03)
00:1d.7 USB Controller: Intel Corp. I/O Controller Hub USB2 (rev 03)
00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB/EB/ER Hub interface to PCI
 Bridge (rev d3) 00:1e.2 Multimedia audio controller: Intel Corp. I/O
 Controller Hub Audio (rev 03) 00:1f.0 ISA bridge: Intel Corp. I/O Controller
 Hub LPC (rev 03)
00:1f.1 IDE interface: Intel Corp. I/O Controller Hub PATA (rev 03)
00:1f.2 IDE interface: Intel Corp. I/O Controller Hub SATA cc=ide (rev 03)
00:1f.3 SMBus: Intel Corp. I/O Controller Hub SMBus (rev 03)
01:00.0 VGA compatible controller: ATI Technologies Inc: Unknown device 5b60
01:00.1 Display controller: ATI Technologies Inc: Unknown device 5b70
02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5751 Gigabit
 Ethernet PCI Express (rev 01)

lspci -vv