Here's a long one I eventually won.  I'm posting it because it's one of my better endgames.  Any criticism or other comments are welcome -- on the engame in particular, but also on my gameplay as a whole.  I'm also particualrily interested to know if black's position was drawable after I managed to promote.

Thanks, and enjoy: 

Nice game.

There is no chance of black surviving once white queens.  The reason is that white will check black until his king ends up on g1 at which time black can advance his king.  In fact, that's what you did.

You gave me a fright when you hung that bishop.  24. Rg1, I preferred 24. h3

You missed a forced mate.  Here's one variation.  I don't think it gets any better if black doesn't take the offered R. 

26. Rxf7+ Rxf7 27. Qxg6+ Kh8 28. Qh5+ (double attack on R and K for tempo) Kg8 29. Qxf7+ Kh8 30. Qh7#

or 28. ... Kg7 29. Qxf7+ Kh6 30. Qg6# 

Thanks for the critique.  I did miss that combination starting with 26. Rxf7+.  Funny, because I saw the indirect rook exchange starting on f7 picking up the pawn on move 23 and the rook on a8 with check on 24, but I was in check.  My opponent likely saw it too as he played 23... Rad8 eliminating the combination and threatening mate.

I did eventually play h3, it probably was better on move 24 as I ended up moving that rook twice in a row.

Finally, a couple of points of clarification: I wanted to play Bxg6 on move 25, not 26 as my annotation states -- and 25... Kg7 was correct for my opponend, not Qd2 as I'd indicated.  It's an older game so it wasn't terribly fresh in my memory.