Good luck!
I'm a veteran of the 2013 thread, having obtained a training contract at a competitive regional firm in July. I mostly applied for City firms but things just seemed to slot in place at the firm I'm going to so I accepted their offer. I was interviewed at, or invited to interview at, Baker & McKenzie, Dewey & LeBoeuf, Hogan Lovells, Mayer Brown, SJ Berwin, Slaughter & May, and Travers Smith. I did not attend all of those interviews as some requests arrived after I had accepted my training contract offer (which was not with any of those firms listed). I am happy to proofread applications/share with you the structure of my forms but please bear in mind my own success rate and that I can only speak from personal experience.
If anyone is specifically considering applying to regional firms I can do my best to offer my experiences too.