i found this incredible carrying bag at Amazon that allows me to carry ipad 2 that is mounted in a case with keyboard.
the carrying bag:
CaseCrown Vertical Multi Pocket Messenger Bag (Chocolate Brown) Gateway LT2022u 10.1-Inch Black Netbook $27
and the case with keyboard:
New Trent IMP38B Airbender iPad 2 case with wireless keyboard for Apple iPad 2 3G Tablet, WIFI Model, 16GB, 32GB, 64GB with four different adjustable angles $50
this is a great combination & fit
i am sure there are quite a few ipad 2 users who are looking for similar solutions, and i would like to share my findings