I generally have no problems buying refurbished items as long as they have been properly serviced and restored to factory specifications by the original manufacturer. In fact, it can be a source of substantial saving.

Adorama just added a total of 93 refurbished Canon items to their online store, check it out for good deals!

http://www.adorama.com/catalog.tpl?op=searchresults&searchinfo=Canon%20Refurbished