Anything and everything is worth the bother - you never know if something is going to work until you try it - especially with instrument mic'ing, since good results can be had on acoustic with dynamics, condensers, ribbons, tin-cans, horns attached to needles recording onto wax cylinder... name it, you can probably get an at least somewhat decent sound out of it.
Try placing one mic facing directly toward the 12th fret, and then try out varying distances. For the second mic, maybe try mic'ing up the area around the bridge of the guitar, to get some more high-end in there.
Just a couple ideas.