I have recently been given a sum of money in my capacity as 'Baptist 'Vicar' of Dibley' (as distinct from to me as a person, even though the reality is that it is mine to use as I see fit, no questions asked).  I'd like to use some of it to purchase some Biblical commentaries to augment my woefully inadequate library.  The tempation is to opt for buying several from one of the popular series, so that I could get a little closer to the aim of one day having a commentary on every book of the Bible (beyond the couple of one volume things I already have).  I already have three or four commentaries on each of the gospels, so am not really looking for these.  But, if you could recommend one, reasonably priced (up to about £25) commentary that's fairly middle of the road theologically and suitable for use by preacher with a smattering of Greek vocabulary and no Hebrew, what might it be?  I'm after the kind that cover a single book of the Bible or at most a small inter-related set.  I'd rather buy less, better, commentaries than a 'bumper fun book of the Bible.'