Can a second DUI be expunged from your record if you've already had your first expunged?

I am considering whether to take a plea bargain or take it to trial, which I have good enough odds in to consider it. Just on the fence about taking very lenient consequences in the bargain or risk getting the mandatories should something go wrong and I am charged. Anyways, say I take the deal, since I did ARD and all that and successfully expunged the first one, can I have this one expunged as well? Obviously I have an attorney and can call in the morning to find out, but it just occurred to me and it's just one of those things that gnaws at you until you know for sure. Any help or knowledge would be great. Thanks