Seems to be out of stock now too....mine also went to scrap, holds a charge for a small 10mins before just shutting down....
There are a lot of mixed reviews for the replacement batteries everywhere so don't really know if I should just go ahead and try one (but the prices also vary a whole lot (from $20 to $120 for replacements)
edit:
Recently bought a replacement battery off EBAY. Seems to be holding a charge, but don't think it will be for long....
Been on hibernate for the last 24 hrs and just restarted my laptop 15mins ago. Down to 82% charge remaining, I can see it going down 1% a minute doing nothing except typing this message. I did a 16hr initial charge and hope I can get at least an hour out of it until it's "broken in".
So for the $30 I spend I can live with it....still looking for an OEM battery though...
G74SX-AH71
17.3" FULL HD
Core I7 2670QM
16GB DDR3
320GB WD Blue
1TB Seagate Barracuda 2nd HDD
GTX560M 3GB