Kohl's has some Lee khakis that come in short, medium and tall. They are on sale frequently for around $20 or so. They are very comfortable and are wash and wear if you take them out of the dryer quickly enough. What is your inseam though? If it is more then 34" I think these might be too short.
Land's End will do custom pant lengths. You can order say a size 8 pant with a 36" inseam if you need.