In This page (http://www.enworld.org/archive/index.php/t-25030.html) linked to in the Orcus thread, there are stats for a drac that owns a "ring of Defence".
Anybody knows what it does beside giving a deflection bonus to AC, and where the source stats are from?
Ring of Defense +5 (+5 Deflection bonus to AC, +5 Resistance bonus to Saving Throws) Cost: 100,000gp
That's from a websearch, I can't quote an offical D&D source.
But considering the Dragon wearing the ring has the following saves.
Saves: Fort +37, Ref +27, Will +35
And according to the SRD he should have.
Saves: Fort +32, Ref +22, Will +30
I'm guessing it is accurate.