Yes, I really liked the first boots but the auction price for a slightly damaged pair went up almost as much as the retail price for a new pair, and they are still available in the store. Maybe I'll keep them in mind as a finishing-my-PhD present. I love Sorrels too but they are a bit too spendy for me at the moment, plus I'm not sure where to get them in the UK. Somebody probably carries them but I haven't really looked into it yet.
I'm not too sure what the wellies are like, so I'm going to see if I can find a pair in the store to inspect while I'm out and about tomorrow. I'm under the impression that they might be more like a regular boot inside, rather than a typical wellie, but there isn't that much info on the website. They are pretty inexpensive though so I might just get them anyway if they look ok in person. My existing wellies are a size too big, pink and purple striped, and slightly faded on one side from the sun.
Grey boots option B are still available but the more I look at them the more I think they might be too big around the leg. After all my hemming and hawing I think I'm leaning toward the black cowboy boots. Hopefully they don't look too costume-y in person.