Yes. Broadband is good - it will probably be detected automatically.
1. You put it in, and restart. As it boots up with a console press enter (do not type anything)
2. Language and keyboard selection.
3. lots of stuff that doesn't need your intervention (HW detection, network setup - you might have to press enter a few times here)
4. The partitioner - this is the part that does the damage. You will probably choose "erase entire disk" and then you can let Ubuntu do it's own partitions. It works and it's the easiest way - something like "partition disk automatically" or "as recommended" I don't remeber. DO NOT FORGET (once again): you WILL lose ALL the data on the disk. If you anything that you want to save - burn it to a CD.
From there it's a breeze...
5. User settings. You need to set up a hostname. Since you anly have one PC, it doesn't really matter. I always use a female name from Tolkien (niniel last time, now tinuviel
). Then the root pwd, username and password. These are important. The root password you will need for some administration, but not very often in fact. Most of the time you will use the user password for administration. Maybe it's best to write them down.
6. I think that's about it. Enjoy. When you're done, come tell us of your success. One more thing: Do not install if you have less than 128 MiB RAM, the partitioner won't even load.
GOOD LUCK !!!