I got an ECA stack from prolab nutrition, called Therma Pro. The ephadrine content is higher then anything on the market. 400mg per cap! compare this with 5mg per cap on hydroxycut, and it was only $30 for 120 caps Canadian and you only take 2 a day compared to hydroxycut which is $60 for 160 caps but you have to take 6 per day and still get 25x as much ephadrine per day with this stuff. Not sure if it's available in the US or not but all nutrition house's in Canada carry it. This shit makes you wired as hell, and seems to be working great so far, I'll keep everyone posted on how it goes.