I got mine from Amazon:
http://www.amazon.com/gp/product/B001CO317M/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
It looks like it has gone up a little since I got it, but still a good price.
I have a 2000 S so it should be the same part, but in case I got it wrong and am driving around with the wrong MAF please verify the part number for yourself