Which one of these straighteners works best? I want one that works well, between $20-30,is healthy for my hair(wont have to apply cream to protect hair), and can find in stores( walmart, target, walgreens). I have thick hair. Any suggetions? Ive narrowed down to: Andis http://www.walmart.com/catalog/product.do?product_id=9605652 Wahl http://www.walmart.com/catalog/product.do?product_id=9893221 Conair http://www.target.com/Breast-Cancer-Awareness-1-Straightener/dp/B000U0IT3U/602-3359523-9533424?asin=B000U0IT3U&alt_view=custReviews&sortOption=%2BOverallRating&sort.x=10&sort.y=4 or should i buy a [...]