So 3 Kiwi and 3 Bananas? That sounds like a plan to me.
Yes, I can see bananas becoming addicting. I just have to be careful of space, since for certain they will have to come inside for parts of the year.
(edit: I'm not really sure which USDA zone I fall in. Before I moved here, everything I read said 5b. Experience of the last year tells me maybe 6b. The USDA maps are a little confusing, since I think they average all the possible elevations and some of my friends' places get much colder than mine does.)