was this an off-handed comment, or more of a confession? I assume that it is the latter, otherwise you probably would not be making such a big deal about it, but the way you said things in the OP make it sound like it may have been a joke or no big deal, so i figured i'd ask.
Aside form that, i agree with
>>2 in the sense that he's not really making any demands or moves to take the next step and go from friendship to a more romantic relationship, so the rest really falls to you. If you can't see him that way, no harm, no foul. just continue the friendship. But if you DO think you can see yourself dating him, you should probably go for it.