i'm 6'3", and i ALWAYS have trouble finding jeans that fit. long levis were good for awhile (til i turned 15, haha), but now i've outgrown them as well. i need a 36" or 37" inseam.
this site is good, but kind of pricey...i dont mind though because they fit!!!
http://www.tallcouture.com/
goodluck!