I'm getting my little female Hog this Tuesday, and I must say that (personally) I don't like my boas over my balls/other snakes or vice versa (my boas don't make by ball seem "boring" or anything like that). Everyone is a joy to handle, they just have different personalities.

Mike, I have my current 3 boas in tubs and they are all doing great so a tub wouldn't be a problem, but I would recommend at least a 4' cage (or 6' for the larger Hogs since some can become just as large as Colombians) when it becomes an adult. Also, there's no such thing as a HOGG island boa...it's HOG with only one "g"