I like the NT3. They're very good mics: I've used them for everything from close mic'ing all the way up to a main stereo room pair. And yes, they make great drum overheads
The only thing to bear in mind is that they're hypercardioids, so their polar pattern is slightly tighter than cardioid; this could either be a good thing or a bad thing, depending on what your are trying to do with them, the room you're working in, etc. Some people might not like the tight sound of them as room mics, preferring the more open sound of omni's. As always its pretty much down to preference.
As for your options, that's really down to what you like best and what works with your band, the room you're recording in, etc.
There are many different stereo positions to try, and really the best thing to do is to experiment and find the one you like.
You're main two choices are a coincident-pair (XY, ORTF, etc) or a spaced pair (AB). Pull the mics back to bring more room into the recording, and bring the mics in closer for a, well, closer sound!
With live recording a main stereo pair is always a good place to start. In a lot of situations it can be all that is needed. But using that as a starting point you can add spot mics to reinforce specific instruments if needed.