I have used BC Seedking, and they are legit. I ordered I think 3 times, and they always throw in a couple extra beans, and my germination rates were always extremely high.
THe packaging was discrete too--kind of funny, my last order actually was an el-cheapo Ipod case, complete with an Ebay seller logo and sales recipt from a bogus ebay store. You had to know what you were looking for or you would never have found the little seed pack carefully stashed inside. I would recomend them--good prices and extremely fast and discrete.