be careful with planting seeds- as a horticulturalist, i can tell you that you are VERY unlikely to get anything you want from seeds produced by most varieties
first of all, the seedlings wont be the same as the parents unless it happens to be one of the few that breeds true to seed (i think some of the english ones are like this, and are also grown with their seeds)
second, you may not be able to tell which are male and which are female even after a full season- which means you could waste two whole years growing a male plant that could turn out to be useless- and i dont know about you, but that would really f-ing piss me off!
get some rhizomes- if you know anyone with hops you can literally dig up a little piece of their rhizome system and plant it in your yard
PLANT HOPS NOW!