I will use Wordpress for a cms and Xenforo for forum.
Now, what are the most important parametres for choice a good host for a community? Note that my forum is very busy, but the website on Wordpress is new -> very low traffic. I see that Xenforo is less server intensive that Vbulletin+Vbseo.
I have asked help on a friend that has suggested me the "minimal requirement" for a server of a big community:
A Intel Dual Core at least
4 gb of ram (minimum)
100 gb of first hd
100 gb of 2° hd (for backup).
I see that many hoster offer in the standard plan offers a good cpu but a "little" ram and another offer a worst cpu with a great ram...what more important? What's the difference between raid 1 and raid 2 of hd?