The new (07/08) pant has the Recco reflector and a waist belt. It loses the side vents as you stated and the edge guards that run up the inside of the legs near the boot area. Instead they placed some edge guard material on the hems. I would go for last year's pant. I wouldn't buy a ski pant without some reinforcement on the inner leg near the boot.
I purchased the 06/07 Stingray outfit in July at half price from backcountry. It is sweet! I am 6' 165lb and the medium (jacket) / medium-tall (pant) fits perfect. I can only fit a base layer and a mid layer, but I tend not to have any problems staying warm. My only gripe is that the jacket's hood is too small to fit over a helmet. This year's model is helmet compatible. Oh well.