Thanks for pointing out that you are not running Vista Backup.
When you go to Vista and use the features it has, the recommendation I've
seen is to have at least 250GB. I ran out and bought a 320GB drive. Vista
has all kinds of sound and video things you can do. They take lots of
space. Though you obviously don't do it now with your small drive, Internet
opportunities are going to present themselves and you will then need that
space. Or, to say it another way, you're not going to like to have to
upgrade your disk size mid-stream!
And understand that a partition for backup is only good for file recovery.
If your disk dies, you are dead--completely! I bought an external backup
drive a couple of years ago when 80GB was a lot and a USB connection was
fast. Today those backup drives are hundreds of GBs and they use superfast
SATA connections, for about the same price. The advantage is that most
computer failures won't reach to the external drive--even moreso if you
completely unhook the external backup drive after you run your backup. The
Vista Ultimate Backup system is supposed to enable you to recover from a
disk crash (I've had three in the last twelve years), but it won't do that
from a backup on the only disk drive you have.
I know this doesn't apply to you, but I ran out of space on my backup device
with Vista Ultimate Backup. Somehow, it automatically freed up more room.
I can't seem to duplicate it now, but I think that is because you can only
do it with options from the "disk full" error boxes. It seemed to work
fine, though I complain that I can't see what it's doing for my confidence.
We had partitions and Partition Magic years ago because of smaller systems
and corrupt systems. Disk drives today recover automatically so you won't
know you had a problem, and with 320GB you don't need anything else.
Computer manufacturers hide their goodies in partitions; they provide
upgrades and support. I prefer to install my own OS and have better control
over my system, though this approach is not for the faint-hearted. In doing
that, I would prefer my system be clean and not have a partition any more.
John