I'm helping a small but growing niche social networking site. As part of the site, users can store photos. Currently there are about 14tb of photos stored and last month 4tb were added. Considering we only have 26tb of storage total on a 2u with SATA drives (and no backups, weeee), we will run out fairly soon. I'm thinking we need at least 100tb of storage to comfortably make it through the next 6 months. So, with a limited budget of around $10k to $15k, what would everyone suggest that could get us to that number? My early thinking on this is to get a 4u, drop a mid level mb/proc with 4 nics teamed with maybe 32gigs of ram and as many 4tb hd's as we can afford. Also should probably get the highest end SATA controller card I can get. thoughts? recommendations?