I was in the same boat as you and the velcro ones are so loud. The magnet cases are not good and i believe its listed somewhere on the Apple site in the support area, if i can find it again ill post it for you but it can cause disturbance in the reception.
Other than that im looking for a decent type of case like this with velcro, i wanted to try out one other than incase or marware. If i cant find one i may just stick to a pouch type for my pocket.
Strange is that there are so few options with this type or case, i guess many peeps only use there pockets to carry the phone these days.