StackSocial is a place where they sell stuff at nice prices. I first came across them when they were selling Lytro Illum cameras at a very knock down price. But only in America, chiz chiz (chiz is a Nigel Molesworth word meaning cheat or swindle - as any fule kno).
Anyhoo, I've bought a couple of items of software from them at very attractive discount, the latest being HDR Projects 4 Professional. The software is very, very, good. HDR usually needs several images which are taken at different exposure. But this software will also take a single exposure and do a tone mapping job which is almost as good as using multiple shots. It has lots of presets and works very well.
If you are interested in making your pictures that bit more awesome, and particularly if you use Photoshop and Lightroom, this package represents great value at only twenty quid.