They may act a little funny with the belly band at first, but should get used to it quickly and act normal again as long as you are sure it's not too tight.
I am so glad the night went well. Sounds like he will be a nice addition to your fur family.
If you are looking for cute belly bands I have lots of different fabric choices including Nemo, Scooby Do, Batman, camo, etc. Just click on the link in my signature and scroll down below the potty pads and there are the belly bands.
Here is a link to the fabrics:
http://s165.photobucket.com/albums/u...Belly%20Bands/