Mounting the old logical volume (created in FC3) after installing FC4?

[BadKarma]

Hi.

I am running FC3, which uses LVM2 by default. For example, the following line appears on /etc/fstab:
/dev/VolGroup00/LogVol00 / ext3 defaults 1 1

I am thinking of doing a fresh install of FC4 on a _new_ hard drive, which will format my new drive using LVM2. After the installation, how do I mount the old drive, e.g., to retrieve my data?

Would I end up with two volume groups (one created by the FC4 fresh install)? If I do, should I make sure that the new volume group has a different name?

Thanks in advance,
BadKarma

P.S. I understand that LVM2 is not robust against drive failures. Since I just had a hard drive failure a couple of weeks before, I am _not_ planning on making a volume group span multiple disks.