Max, I presume you've read Chickenhawk, how about CW2?, another good one.
A recent WW2 read was First light, by Geoffrey Wellum. published in the Uk by penguin books so it may be difficult to find in the States. From public schoolboy to Spitfire pilot in less than a year, this is a hell of a read. I could hardly put it down, the insight of the writing, the attitude towards king & country and the thought that he could die at any time but that it was pretty much just one of those things. thoroughly recommended.
Pete