Is there a website i can trade in my XL1s? I'm looking to not spend so much and I need a 2nd XL2 for shooting widescreen with 2 cameras.

Rather than trying to part-exchange it for the XL2, it is normally far better to sell the XL1s (such as on Ebay or on the DVinfo private classifieds section of this forum) and then use that money towards buying an XL2 upgrade.