I looked into that myself after fucking up big time with a bunch of expensive seeds on my first grow. I ended up ordering Mandala Safari Mix ~£7/10 seeds and Sensi Mix ~£40/25 seeds and so far things are going well with both - germinated well and produced healthy seedlings within five days. Bongs and Glass Pipes - Grasscity.com offers 100 seeds for ~£42 (mega combi pack) and Cannabis Seeds .com WHERE THE TRADE BUY World's No1 Marijuana Seeds, WHOLESALE Supplier seems REALLY cheap but I have not ordered from either so couldn't tell you how reliable they are.