Thanks for all the replies, guys.
Hunter: there is an Iaido/Jodo dojo half an hour from me, but at the moment I don't have transportation and BKA membership is a bit costly. It's where I plan to go when those problems disappear, however. I want to study Iaido both to help understand where Aikido techniques come from and to study Iaido as and for itself. I own a couple of wall hangers and a low-end shinken, but for now they're just hanging on my wall
To everyone else: thank you for being honest with me. I was afraid of as much, but it is still something that holds my interest. Perhaps what I need at this point is some standard bokken stuff to work on (i.e. something more directly related to Aikido techniques than Iai)?
I shall continue my research. Please do not stop with the replies