We should be able to see what the total count is for upvoted questions and up voted answers and vice versa. Right now it just takes a composite and shows total upvotes and total downvotes (on the profile page).
Yes we should. It would also be nice to see other stats for a user, such as number of close votes given (split by questions still closed, and questions that have since been open), number of delete votes given, number of edits performed, etc.
Some of this information might be available from the API, and therefore could be built into greasemonkey scripts.
(This all been suggested before, though.)