Balloon tyres for cremaster's sake

I know I'm like 2 years behind the fashion, but I was looking at smallfurry's fat bike a couple of weeks ago and it has made me want to be riding something with supermassive tyres on. I'm imagining rolling clean over all the bumps and potholes (and peds) in the road like some kind of two wheeled monster truck. So, time to get all Massey-Fergusson on one of my bikes!

There are Specialized Fatboys, which run at a recommended 100psi (great for fat boys like me), but they're only about 30mm wide. Then there are Kojaks at 50mm (but with poor puncture resistance) or Big Apples at 50mm (they used to do a 60mm but it's now discontinued) which seem to be about the tubbiest clinchers around. I'm not interested in a compromise tyre, I'm thinking, "Go FAT!! or go home".

So, anyone tried any of this breed of super-fat tyres in that last couple of years? Is there anything fatter than the ones above though, in the 50mm+ range? And would I need to move up to a wider rim (currently have 1" rims available) to use them?

^ I'm a big fan of the Halo twin rail 26 x 2.2. Light for their size, grippy, fast & puncture protection is ok too.

http://www.wiggle.co.uk/halo-twin-rail-black-mtb-tyre/?utm_source=google&utm_medium=base&utm_campaign=uk&utm_content=Halo-Halo_Twin_Rail_Black_MTB_Tyre-Black

I've run them as low as 35 psi on mavic xc 717 rims, which are pretty narrow by modern standards.

Knew I had a picture somewhere.

I'm rolling Schwalbe Supermotos, 2.35", on Rigida Big Bull rims with no problems at all. Another bike has 42mm tyres on Velocity Synergy rims, again without problems.

Both feel nicer to ride than regular Marathons, and I don't know why, but they are light for their size.

super motos are ace. really light for their size. and roll smooth like butter.
i run them with puncture protection bands on my 29er and have yet to have a flat.

If you have the right drop height from the fork crown to the braking surface but then fit super-fat tyres, they will likely foul the arms of standard brakes at the sides, won't they?

So am I going to have to think about tubby brakes for my tubby tyres?