I am looking for Christmas ideas for my wife who has the Digital XT. This is her third Rebel--film to digital to XT. She has the lens that came with the camera as well as a Sigma zoom lens--up to 300 mm--paid about $250 for it. I have a budget of $750 and need help as my camera knowledge is limited to "point and click." If you have any ideas of what you would buy for a Rebel XT I would love to hear from you. Thanks.