Has anyone here played around with keyword selector tools (e.g. DP's, WordTracker, Overture, etc.) and developed backlinks with anchor targeting the high KEI phrases*? I was wondering how many backlinks like this it typically takes to rank #1. If the KEI was > 100, would 1 link do it? 2? 3? How about for phrases in the 10-100 KEI range? [* KEI is a measurement some keyword selector tools use to quantify the popularity of a search term vs. the amount of competition. So a high KEI word has a decent amount of search and a low amount of competition.]