I haven't listed on eBay or Amazon yet, I thought I'd give you guys a crack first. The iPad seems to go for $300-350 and the iPhone for $350-400.
I'd part with either of them for $300. The iPhone is in immaculate condition, Otterbox and screen protector since the day I got it. The iPad is the same, except it has one dent in the bottom right on the back. I have the original boxes and chargers and shit for both, though I have used the headphones on one of them.