I'm currently waiting on my new MBA 13" from Apple.com. I have an approx 2 yr old Time capsule. I would like to take advantage of the MBA new ac wifi technology. I am looking at the Airport Extreme for this. My (possibly dumb) question is...can I use my existing Time Capsule for my automatic and regular backups, and a new Airport Extreme for my internet connection? My Time capsule currently has 1.16 TB of 2 TB available, so of course I would like to continue to use it for backing up my new MBA.