Yes, I still find myself thanking God for the people who prayed for me. That's why I try to pray for others. I somehow want to return the favor to God if that makes sense.
It's awesome that He reached you a different way. Some people may have been praying for you that you were not aware of like that Christian man from work.
Yes, I too would love to hear the testimonies of others as the Lord leads. They are so very encouraging. :)