There's much discussion in this thread centered around the word: perfect. As stated several times in the past few days (I've been offline), the only thing perfect is God. However, Paul uses it more often to mean 'complete' or 'mature' than referencing Gods' being perfect. Look at the verses below in several translations I have on my computer: (Note: I intentionally chose different translations for each verse to show the differences of wording)
Romans 12:2
And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God. (KJV)
Do not be conformed to this world, but be transformed by the renewal of your mind, that by testing you may discern what is the will of God, what is good and acceptable and perfect. (ESV)
Do not be conformed to this world, but continually be transformed by the renewing of your minds so that you may be able to determine what God's will is--what is proper, pleasing, and perfect (ISV)
Do not conform to the pattern of this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what God's will is—his good, pleasing and perfect will. (NIV)
2 Corinthians 12:9
And he said unto me, My grace is sufficient for thee: for my strength is made perfect in weakness. Most gladly therefore will I rather glory in my infirmities, that the power of Christ may rest upon me. (KJV)
But he said to me, "My grace is sufficient for you, for my power is made perfect in weakness." Therefore I will boast all the more gladly of my weaknesses, so that the power of Christ may rest upon me. (ESV)
But he said to me, "My grace is sufficient for you, for my power is made perfect in weakness." Therefore I will boast all the more gladly about my weaknesses, so that Christ's power may rest on me. (NIV)
but he said to me, 'My grace is sufficient for you, for power is made perfect in weakness.' So, I will boast all the more gladly of my weaknesses, so that the power of Christ may dwell in me. (NRSV-CE)
Colossians 4:12
Epaphras, who is one of you, a servant of Christ, saluteth you, always labouring fervently for you in prayers, that ye may stand perfect and complete in all the will of God. (KJV)
Epaphras, who is one of you, a servant of Christ Jesus, greets you, always struggling on your behalf in his prayers, that you may stand mature and fully assured in all the will of God. (ESV)
Epaphras, who is one of you, a servant of the Messiah Jesus, sends you his greetings. He is always wrestling in his prayers for you, so that you may stand mature, completely convinced of the entire will of God. (ISV)
Epaphras, who is one of you and a servant of Christ Jesus, sends greetings. He is always wrestling in prayer for you, that you may stand firm in all the will of God, mature and fully assured. (NIV)
As the above verses show, Pauls' use of 'perfect' meaning 'flawless' only when referencing God. The rest of the time, he's using it to mean 'complete', etc.
For what it's worth, I just did a search for 'perfect' in the entire KJV Bible. The OT uses it sometimes in reference to God, but the rest of the time to mean 'complete', etc.