Installing Ubuntu alongside Fedora 8 - issues?

[Chris G]

I run Linux as my main home desktop system, for many years it was
Slackware, then for the last couple of years it has been Fedora (7
then 8).

I've been running Ubuntu Server on my 'NAS' system which lives in my
garage and having that has overcome the reasons I didn't move to
Ubuntu on my main system.

So.................

If I want to do a slow migration from Fedora 8 to Ubuntu 8.04 LTS are
there any major issues I should be aware of?  I have masses of disk
space and (for example) when I migrated from F7 to F8 I just did a new
install of F8 which dual booted with F7 and I migrated my
customisations across.  /home is on its own partition.

Can I do the same with Ubuntu?  I.e. can I install Ubuntu on its own
partition and leave F8 intact and then boot one or the other as
required until I'm happy with the new Ubuntu installation?  Will
Ubuntu and Fedora 'co-operate' with how they see Grub, /boot, etc.?

-- 
Chris Green