Edit: I see that you and PC are already discussing this, but here's my $.02.
Greg, consider this a learning experience...(okay, I'll come to NJ so you can hit me)
I think I posted this in another thread, regarding partitions. It bears repeating, I think, especially if anyone is considering a move to Linux. When you are setting up your partitions, you will want at least three:
/ (root) this is where the OS is put during the installation. I suggest at least 15GB.
/home this is where all of your documents, user files, profile configurations, downloads, photos, etc. will be stored.
swap generally you will want the size of this to be
at least equal to the amount of RAM installed in the system.
For example, my main hard drive is 500GB, partitioned into three parts as described above, and the (root) and /home partitions are formatted using the ext4 file system. I have 2GB of RAM, but chose to allocate 4GB for the swap in case I buy more RAM.This set up means that my /home partition is H U G E, but I have plenty of room to download all sorts of odds and ends. Also, my partitions appear on the drive in the order above, with the (root) and swap at opposite "ends."
The reasons for doing this are first, if something happens so that the OS section (root) gets mangled, either by me or broken upgrade, my documents and other personal stuff is intact and usable. Second, if down the road I decide to completely change distros, I would only have to format and install the OS in the (root) partition, leaving my documents intact in their own partition.