They have fixed the sagging issue (tho i havent noticed this ) in the 2011 model with a stronger longer seat. I would choose the select over the elite so you can have bubs face you in the select. There have been lots of studies about how beneficial this is.
I'm excited I found the car seat adaptors cheap on gumtree and I'm getting a unity capsule cheap too!! Would love the maxi Cosy mico but it's too exxy new