Go to a proper running shop and have a gait analysis done and try loads of trainers out. Do this before you run very long, I started in some fairly knackered old Airwalk trainers and suffered shin splints, my new trainers were like wearing a fluffy cloud in comparison.
I wouldn't bother waiting for a specific brand or individual trainer to release a new one - there are loads of good offers about at the moment, get yourself a bargain!