After resisting for as long as possible the urge has taken hold. My employer pays for my cell phone/service but they've taken a hardline against iPhones. That being said they use AT&T and I think I'd like to try and unlock and jailbreak an original iPhone (with my current SIM of course).

Since ebay seems to be the only place I can purchase a 2G iPhone (without a contract). I find myself very untrusting of many of the auctions I'm seeing - Not to mention I'm weary of basically paying full price for a used phone. For the sake of avoiding an obvious scam (and being an iPhone newb), is there a question that I can ask the sellers in order to establish that the listings are real?

Or am I just crazy for wanting to try?