Oh I love sockdreams (no shipping charge!). I almost hate to advertise them as they are often sold out of the style I want (though it seems when I check back, they've restocked fast - with even brand new styles I "need" *cough*). I love overtheknee socks, but I too am a member of the Why-Me-Lord?-pudgy-thigh club (if you saw a pick of my legs without any contextual sizing aides, you'd swear you were looking at a toddler). But anyway - most of their OTK socks - as I was happily surprised to discover, really ARE long enough and not too tight - and the styles that aren't? They'll tell you. That's what I really like too, the frankness and casual whimsy of their online chat-alog.
{And no, I am not affiliated with them. It's just one of those products/companies/sites you find, and want to pass along. It was harder than I thought to find some once I looked.} Oh, also, Soxtrot is AMAZing, but more for patterned tights. For striped socks, though, sockdreams is a wetdream. Since I am not too far from Portland, I wish they had a brick&mortar place where one could see the footwear "in person". Although again, that's another thing they do online that I like: they take a pic of each sock color individually rather than just Photoshop in the color. That way, you have a few different angles and can get a better idea of the overall texture or whatever.
I do hope manufacturers make available more "slouch" style ankle socks. That is, roll-top, or without strangling elastic that leaves an impression of the ribbing after you take them off. That can't be good for your circulation, and yet they do it. Do most women really like ankle socks that "stay up" smoothly? Whatever.