I'm a scientist by heart: I believe that while the existence of God, however defined (or any metaphysic question, for that matter), is a tough one, it might not be completely inaccessible to science. There is a big amount of circumstancial evidence (and we also found the neutrino, didn't we?). Some quick googling did not turn up a name for this philosophical stance, although it surely falls under "Sceptic". (But that term would be very unspecific, since it might imply I'm a sceptic on any question.)
Anyone to drop me a term?