Welcome Mike. I'm a newbie too.
For target ammo, I order remanufactured rounds from Freedom Munitions, usually the 500 round quantity:
www.freedommunitions.com
I use the 124 gr.
For Self Defense ammo, you can't go wrong with any ammo on Doc's list:
http://pistol-forum.com/showthread.p...f-Defense-Ammo
I am currently using the Remington Golden Sabre +p 124 round. I am about out of that, so I have a couple boxes of Speer Gold Dot 124 standard pressure HP to try.
The reason I ordered the normal vs. +p is 1) availability (I can't seem to find the +p) and 2) my wife and I share the pistol so I am ok with her not shooting the +p round. At any rate, per Doc, the standard pressure load is 'ok' but the +p performs better, so it's on the list, apparently.