I like these guys http://cultivatedreef.com/index.php?route=product/category&path=19_26
Just ask for easy to care for frags in the comments and I guarantee you won't be dissapointed. They have great prices and I think they are doing a sale of any orders over 150 get a free three piece frag pack until the 15th of this month. If you have questions just shoot them an email, I've never had to wait longer than an hour to get a response.