There are a few very important things to consider when thinking about going with an AVCHD (or any tapeless camcorder):
2)Storing Video: Just be ready to store your files on a Hard Drive and a bunch of DVDs.
3)Dealing with the eventual Hard Drive crash of the cam: The Sr-12 is a 120gb HD camcorder...if you fill it up, you had better have a good excuse...such as a 7 hour long wedgefest one day. What I mean is that you should always be taking video off of the thing every day and storing it in a safe spot. Sooner or later, that hard drive in the camera is going to fail....you don't want all your chase season footage on it and nowhere else when it does. A backup camera is always something I'd recommend...but not everyone has the ability to buy two cameras, if you have the money though, the peace of mind that grants you is amazing