beta2 or cvs?

Hi,
I am intending using the latest and greatest postgresql to learn about
how it works and where it is heading (the project I am on is in for
the long haul, and won't need to be "in production" for months
yet...), so is the best place to be for the time being cvs? I am
running gentoo so we get the hottest of the press in terms of releases
but would it be better to be even closer? I am not at all bothered
about the odd bug, and would like to be involved in the testing
process - a lot of projects just tell you to update to the latest cvs
before reporting a bug, is that the general story here?
Cheers
Antoine

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G System, The Evolving GUniverse - http://www.g-system.at