I just searched and hunted strains until I found ones that sounded good or had desirable traits. I really wanted a strain that finished early, had some pre-98 Bubba lineage and resisted mold well. A fella named Sunbiz recommended Caramel Candy Kush, so I will be running a 10 pack outdoor. I'm growing this Jackberry because of the colors and pheno potential.
I'm a fan of PeakSeedsBC.com. Dude's name is MJ and you should check out his lineup of stable strains, such as the Sweet Skunk and the NL and Berry crosses. I've heard good things with the Kush crosses as well. You basically put $40 in a birthday card, indicating each strain you need sent to US and he sends the seeds very stealthily, very ingenious. It's $40 for 10 regular seeds, but he sends 12. Request a customer # and send an email addy with your order for updates on your order and future discounts. The main thing I keep reading with this breeder is reliability and stability in his strains.
I love dealing with cash, so Peak and Sannies are no big deal for me, but the whole signing for your order for Sannie freaks some out. Never been a by deal to me, but if it freaks you out, use Cannazon.