PV Resizing

Hello.

I've managed to get myself into a rather funny spot -- I use LVM to provide administrative flexibility, but I didn't account for one possibility. I'm hoping someone has an idea...

I have a machine with a single hard drive. I have three partitions, boot, swap, and the lvm partition. I now need to install a windows partition... (damn CAD program won't run under WINE) Is there _any_ way to resize the PV from under LVM? (Like with parted or something) so I can create another partition?

Thanks in advance.
Monty