[gregpilling]

From my point of view as a business owner, if they haven't replaced you already, your old employer would likely welcome you back with open arms. Good people are hard to find - and ones that know all your systems and eccentricities are even harder to find. The biggest headache in hiring someone is getting them up to speed and integrated into your company culture. This is way more time and energy consuming than you might think. So if I was you old employer I would bring you back - the only headache would be if I had replaced you already or promoted one of your old co-workers. At a Fortune 500 company they should be able to find some parallel position at least for you.