basic differences with the delux and normal strider are:
strider dlx - capsule option, comes with footmuff, sunshade and raincover, the hood also has an extra bit u can unzip to allow airflow through and i think the materials are better quality.

ive only seen the dlx in a four wheeler not sure if it comes in a three wheeler... however i was told at 'your childs nursery' that the three wheeler strider is being discontinued and hence they are coming down in price.

My baby is almost four months old and ive just purchased a red strider dlx (at this stage have not bought the capsule or bassinette as he will out grow it anyway will wait until possible baby two and hopefully they will be cheaper then). i totally love it! its so easy to push and fold down. i did have a babylove four wheeler with travel system which im planning on selling and its much lighter than this. Oliver loves it to - feel asleep while i was figuring out the straps and making them the right size for him.