Simple site update suggestion:
A "Back to Talk" or "Back to Top" link at the end of the comments on a talk topic would be nice.
I know this is incredibly lazy, but once I've finished reading all the comments instead of scrolling back up to the top, it'd be nice to just jump either to the top of the page, or back to the main talk page. Once a topic has passed about 30 comments you've scrolled down pretty far.
Just thought I'd throw that out there :)