pjhobs' stable - Who doesn't love a long head tube?!

Have been considering n+1 for my commute (20k each way) and find myself unable to make a decision, so though I'd ask the fountain of all knowledge/opinions - the internet!

Requirements

• large frame size (I'm 6'7, BB to top of saddle is 92cm)
  
• fixed (ideally with horizontal or rocker dropouts)
  
• disc brakes (front and back)
  
• big tyres (+28c) and mud guards
  
• ideally steel
  
  

I currently use a Pearson Touché with a disc brake on the front and 23cc tyres, but with the roads covered in s**t and bits missing the commute isn't much fun, especially when greasy.

I've been looking at the Cotic Roadrat (budget option) or All City Nature Boy Disc 853 (premium), any other ideas?