I've got a lovely Medium 2010 Giant Anthem frame, complete with a brand new gunmetal Superstar seat post (I can probably throw in a new matching Superstar stem & bars plus a front XT mech too if you plan to go 3x10 with it.
I've got some nice Sun Ringle wheels as well.
Here's the frame built up with the Ringle wheels (but different finishing kit)..........
It's a medium, which Giant quote as an 18" but it's actually 17.5" measured to the top of the seat tube and 14.5" centre to centre so it's a very compact frame. All the specs can be found here: