they have a nice selection of harder to find drivers, as well as the availability of help from real people if you can't fix your driver issue.
The http://www.driverguide.com/ site also has a handy wizard to help you figure out which driver you need. You just click on the manufacturer name and it guides you from there, suggesting likely drivers along the way until you end at the specific driver for your printer or other device.
Installing printer drivers is typically pretty straight forward and many drivers come with installation utilities, but if you have trouble, check out a driver installation tutorial. This one (http://www.microsoft.com/whdc/system/pnppwr/pnp/no_reboot.mspx#EZG) from Microsoft covers several different types of driver installation and has several good tips.
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