Hi:
I haven't been banded yet but I can give you a little advice. The best thing to do is BOTH. Weight training is priceless because it really hits areas that cardio misses (and not intentionally). Although there is no such thing as target weight loss (technically); if you do weight training (upper back, shoulders, pecs, etc.); at least 2 times a week (gradually increasing weight once you get comfortable enough not to feel it that much); you will DEFINITELY see great great improvements with your upper body. You should not start with really heavy weights. Start with 5 unless those are very easy. If so, start with 8lbs ones. A good book to look at is body for life. They also have a website with transformations for you to view. its all real too. That program is great. The technique is called pyramiding because you keep increasing your capabilities quite freaquently so you continue to get stronger. The program works in 12 week increments and has a diet to follow too but after the band, you don't need that part but it teaches you about weight training and how to go about starting and making it work for you individually. Remember to Isolate!
Good Luck:clap2::whoo: