Just as a cautionary tale, I bought a Netgear WG311v3 (it's a g, not an n)... biggest piece of shit I've ever bought.
OMG I got one too (PCI, should have opted for a pci express/usb card instead.

). It's a great piece of hardware (theoretically) but no drivers. In fact, the mess of the netgear drivers in general puts me off their products. The exception is the routers, as your not driver interacting with them
I tried to get it running under Linux. It work, hell no. The Linux installation requires you to emulate Windows Drivers, so you install a wrapper then run that. It never works. Doesn't work in Windows 7 either. I tried to get it working for about eight hours, thought fuck that and eventually bought some Homeplugs.