Land’s End has a pretty good site. They carry tall sizes that are actually “tall”. The pants are up to 36” hemmed, but that is allowing almost 2″ for a hem. If you can sew a more narrow hem, you may get a 37″ inseam out of it. They will hem them for you, but only up to a 36” inseam. Both jeans and dressier pants are available. The link to the size chart (and the rest of their site) is below. Seeing the inseam chart is a little tricky, you have to scroll way down the page. They have some good sales occasionally, but extra long inseams don’t come cheap.
www.landsend.com/customerservice/size_charts/womenBottomsSizes.html
They do have some good stuff, and yes, unless you catch a sale, it is kind of high, but like Eddie Bauer, I love to wear their clothes more than something with the sleeves or legs too short.