ATTENTION:
There is a thread posted this morning on the Expats In Isaan / Northeast Thailand group where someone said that the thai consulate in Savannakhet is now requiring a bank book showing 200K baht to issue year-long multi-entry Non-O's based on marriage to a thai.
Right after I read the post, I called the Savannakhet consulate and they said that NO you don't need to show banked money IF you have the copies of the marriage certificates (and bring the original rose bordered one if you were married in thailand).
I also saw someone asked about it in the long running Savannakhet Non-O visa thread on the Thai Visa Forum too.
If anyone finds information about it posted on the inter-web, please share it, but let's wait and see IF this is a policy change before getting all crazy about it. ;)