It's a really small thing that would make a big difference!

When threads get long, the forum index shows the thread title, then a click through button for pages 1,2,3 and the last page.

More often than not on returning to a topic, die hard HPCers will probably have read most of the thread, bar maybe the last page or two. A couple of examples of this would be the auction threads that M21er does, and some threads that appear when property shows are on - if you've been following the thread, chances are you've read the first few pages, it's the last few that you've not had time to read...

Would it be possible to change the click through page options to say, 1,2, and then the last two pages of the topic?