I actually looked at trikes when I was doing the research, but quickly dropped the idea beacuse of budget. Randy at ActionBents was extremely helpfull, especially since he gave me the "Reverend's Discount".
As I mentioned, I just didn't think far enough ahead for my wifes for her to be able to put both feet on teh ground. I have modded the bike and seat for her to reach the peddals comfortbly, and to maintain balance.
/me slaps himself on the forhead agian. I should have thought about it, she can hardly sit on a normal chair withough dangling her feet.