Out of those items on the list, I'd be interested in the F@H icon, the extra fields for contact info, experience, and specs, and the spambot mod.
I think having the specs possibly in a sort of drop down box, where you can click an arrow and they fold down, is achievable, I've certainly seen this on vBulletin boards.
I can't think of anything else I'd like to see, but I'll post here if I can think of anything.