But it is one of the easier Nix Distro's that many people like to use. I personally prefer Free BSD which is what Apple base their OSX on.
But that is just more from a security point of view. However what you need to understand is that there is no OS that will support 100% of all available hardware. M$ Windows certainly can not but many people think that because they use a System Makers Slipstreamed Install Disc with just the drivers for their Hardware that Windows is great and just installs. Well it doesn't and with those Slipstreamed Install Disc's from the System Makers you don't get a full copy of Windows and you are very limited in what you can do with them.
Nix on the other hand tends to work better than Windows when it comes to the initial Install as it doesn't require a lot of Drivers unlike Windows. Most times you need to install Sound, Video, Chip Set on a bare system before it even begins to work acceptably. Then you need to look for Network Drivers and whatever else is needed before you even log onto the Windows Update Servers or run the risk of whatever driver you require not actually installing.
As for Linux Systems if the computer originally came with a Linux Distro Installed the Recovery Disc has the necessary Drivers just like the Windows Recovery Disc's supplied by makers do so it's not really important.
The only problems start to appear when you attempt to install a different OS to a system that didn't come with that installed this is exactly the same for changing the version of Windows Installed to so it's not a big deal really.
As for the talk that you are hearing that Nix will replace Windows that is just talk. Till the Major System Makers start to walk away from M$ and their Licensing Agreements Windows will be the OS of choice for Desktop Systems and that's not going to change in the short term one little bit. The high end Servers and any Specialized Servers are a completely different story as that is where Nix excels.
Personally would you feel comfortable with your preferred Bank if you knew that all of the Back End Servers that they used where Windows Servers that where exposed to the Outside World with your money being venerable? ;)
As for other Distro's Mandriva
http://wwwnew.mandriva.com/en/downloads/mirrors/2006iso
and SUSE
http://www.novell.com/products/opensuse/
Would be my first choices though many others like Mepis
https://www.mepis.org/mirrors
and Fedora
http://fedora.redhat.com/
But it all depends on what it is that you want to do with the computer. Different Distro's are better at some things than others as this is a reflection of what their Developers see as Important.
As for your listed Hardware the Intel Ethernet Driver should be installed by Default but the Broadcom one need some work look here for help with that one
http://ubuntuforums.org/showthread.php?t=896713
[i]edited to add[/i] If the Intel Driver wasn't installed the only thing I can think of is that as 9.1 is so new they may have dropped support for some hardware and a older version like 9.0 would be a better fit for someone who doesn't want the hassle of finding/installing drivers.
You may very well find that, that does exactly what you want it to. ;)
Col