Okay, just revently started carrying two. Primary pocket gun is a 9mm derringer two shot and secondary, in an ankle holster, is a SA 22lr semi-auto.
In the past I've carried a Ruger LCP, also seperately, a Riger LC9. But I've come to despise DAO triggers and find them worthless to me, defeating the purpose to protect oneself from danger. Only you can determine if the trigger action is a make or break thing for you.
Size is the biggest deal for me, hence the small guns. I would carry nothing larger than a 380 auto myself. Have thought hard about picking up something to replace the LCP, in SA trigger, but haven't made my decision yet. Leaning toward a Tanfoglio, just comparing sizes. The Bersa is fantastic, but too large for my taste. Comfort and concealability are tops!