Not a 100% sure about the cheap box. I am new to dedis but QuadCore would kick ass if you have around say 10 to 15TBs. We want the site to be as fast as freakin possible because we will be pulling in a ton of RSS feeds. We want a lot of RAM I assume for this. What would you think?
Basically, the site is a highly modified version of the social bookmarking site pligg, which is kinda resource heavy anyways. We are pulling in a ton of rss feeds, but the site is fairly simple, meaning no videos, flash or anything like that on the frontend. Also, we are running a ton of subdomains off of it, basically making more pligg sites, which is slowing it down. Besides working on the pligg script, which we are, we also thought a badass server would work as well. Suggestions?