Upgrade to PG 8 before starting major development?

I'm about to embark on some major development of data bases both at home
and at work. In both cases, my servers, which are functioning perfectly,
are installed with FC3 (postgresql-7.4.6-1.FC3.1)

Would it be recommended to upgrade to FC4 before starting to get pg 8? I
really don't want to spend the time right now, but I also don't want to
pay for it later with an upgrade that will include table and data
migration.

Feedback?

TIA,

--
Lan Barnes                    lan@falleagle.net
Linux Guy, SCM Specialist     858-354-0616