Wow! Thanks for the info! I really appreciate that you took time to differentiate the consumer vs. the pro stuff. I didn't know that you could (sometimes) sub a pro-level driver for a consumer-level driver... very fascinating! I had suspected that where processing power really mattered (during  rendering), that there really wouldn't be much difference between pro/consumer stuff.

Thanks again... you have saved me from dropping some serious $$$ on something that would not have made much difference to my rendering pipeline. :)

Have a great day!

Todd