That makes sense. I don't have the bike in my hands yet, my friend bought it. I'm hoping I can just remove the extra chainring and use the outer one along with the crank I have now... at least for awhile. That should save me some money. I found some nice square taper cranks at the bike co-op for $21, but since I don't have the bike in my possession, I can't check for what BB spindle type the bike has.

Thanks for all your advice!