While this is very much a nascent field, this is the best attempt I've seen so far to do meaningful collection and analysis of actual data around startup sucess.
Do you need to be in San Francisco? SF has the second highest power prices in the country. I'd check out Layer42 down in Santa Clara, email [email protected] and tell him BitPusher sent you. Their network is great, their facilities decent, and their customer support blows 365main's out of hte water.