depends how tall you are. im 6'4 and the xlt fits like a normal shirt pretty much.
try this place http://www.kingsizedirect.com/Big-and-Tall-Hoodies-and-Sweatshirts.aspx?DeptId=23966 stuff is pretty cheap and comes in tall sizes.
but if youre lookin for something a little better try FASC. the stuff is pretty tall, and NOT very wide. i'm 6'4 and i have a 3xl hoodie and it goes well passed my ass and its slim fit. only negative thing is that the sleeves arent super long