HDRI maps for sci-fi

I just came across these CC-BY HDRI maps which seem to be perfectly suited for sci-fi stuff. There is also a tutorial for 3DS Max to create your own (actually blender internal renderings can be saved in openexr format, so there should also a way to do this with blender):

http://zbyg.deviantart.com/art/HDRi-Pack-1-97402522
http://zbyg.deviantart.com/art/HDRi-Pack-2-103458406
http://zbyg.deviantart.com/art/HDRi-Pack-3-112847728

3DS Max tutorial: http://zbyg.deviantart.com/#/d1x244e