The ATI proprietary driver finally works for suspend!!!
This was resolved, according to my reading, two versions ago (including the current version) and I never bothered to check! I write this message from a previously suspended Dell Inspiron 8600 notebook with ATI Radeon 9600+128MB.
I am simply awed that they finally made it happen. I'm not sure I'm going to know what to do with myself now that suspend to RAM is working.