[_cbsz]

Just buy seeds on the Internet?

Also, I've heard conflicting reports about growing mint indoors over the winter; some sources say that mint needs to die down in the winter and won't survive year-round growing, but others don't mention it. Should I just plant two pots, one indoors and one out?

[rwmj]

I've always bought it in pots, not tried it from seed. The pots are really cheap anyway (like $3 equivalent). All they need are watering, and if they die off, just get another pot ...