Nice score. Real Grolsch bottles are green, though; so if yours is green, be sure to keep it out of the light.
Most of the bottles of my batches are generic, brown, 500 mL pop-tops, but they're spendy at $2.29/bottle.
A couple 1.5 L or larger swing-top bottles per batch for dinner parties and the like would be awesome.
I may have to see if the LHBS has any of these 2 L swing-tops: http://www.williamsbrewing.com/2_LIT...c_P1941C49.cfm
They're actually the same price per volume as the 500 mL bottles ($9.15/bottle).