Site needs a version upgrade to patch some security issues and then some. Tentatively I will do this Monday starting around 8 and no later than 9. It takes about 3 hours to just do the backup because youse have about 3.5 gb worth of attachments. After the proper backup has been done the site wont be accessible until all the upgrades are done which I hope is not more than 2 hours but since I have never done it the length could be longer.
I will post later in the admin forum the details what I am doing. I just dont want anyone freaking out Monday when I turn the site off..