How safe is the net?? It's very safe...it's customs that sucks. Your only as safe as the address is your sending to. Setting up a safe addy is a must IMHO. Try to not have them sent to where the grow will be at.

I never buy feminized seeds, and usually stay well about the so called 50/50 ratio.

Strains; man thats a loaded question, it's more about your grow area, your buzz preferences, what yeild your needing each cut.
I ran NL's years ago, but find it a very weak smoke...or I got a tolerence thing for it.
I've been swapping clones and seeds with so many folks, I dont really search shops to much anymore. The 18-20 strains I have now are from banks long gone, either out of business or off the radar...again with friends you get developed with.
Your just going to have to read till you puke.