Linux works with pretty much all kit nowadays. If you want to satisfy yourself before you take the plunge then try one of the live CD's.
These CD's allow you to run a full Linux distribution from CD without installing it on your hard drive. You will need to make sure that your BIOS allows you to boot from the CD/DVD drive. This way you will be able to see what Linux can do without actually doing anything to your HD.
If you go to click here you can download their live CD (which is really a DVD becuase it won't fit on a CD) or you can go to click here which will fit on a CD.
Welcome to Linux and have a lot of fun!