Beginner’s guide to HDR photography
My mate Jared has posted a most excellent tutorial on High Dynamic Range (HDR) photography. I haven’t tried this yet but I definitely will the next time I’m out with my camera – nice work Jared!
HDR example by Jared Earle, used with permission

since several weeks a have this TAB open and would like to make a poster from this nice HDR-picture. Is it possible to get a high-resolution TIFF/PNG/whatever ?
I don’t own the rights to this photo so I can’t get that for you. I suggest you leave a comment on Jared’s blog post (http://blog.23x.net/?p=7). He may be willing to sell you a print of it.