As for powweb - if you fill up the 300gb of space and use 3000gb transfer in one month they'll cut you off. In fact you'll get cut off a lot sooner before you reach that limit - No way in hell can you genuinely use that much for only $6
What evidence do you have for that claim? I used to cut their old bandwidth limits pretty close and they've never said a word, nor has the site slowed down.