The questions I would start with is where are you travelling and over what terrain...? why?
Well if it's off road in peru then what you pack will vary say from cycling around the u.k. or most of europe
If it's your first tour then you will I absolutely assure you ...you will pack more than you will need because of that just in case feeling.
The bike you showed was a surly long haul trucker a fine bike but that might explain why the surly racks are fitted also. The front at first looks handy.
I've toured the states before and lot of europe and found the sjs/thorn racks to be bloody brilliant. the key is weight distribution.
Personally I used their expedition rack with their own lowriders then used smaller ortlieb panniers on the front for the bulky and light stuff..jumpers etc. Then used the larger panniers on the back and the top of the rack will allow for a roller pannier for the ten t& sleeping bag. If budget allows also a map/bar bag is very handy
Tyres..general consensus and for me experience...Schwalbe marathon, used to be xr but the new supremes are good also
Anyway I've babbled so I'll post some good links that might help
http://www.sjscycles.co.uk/carriers-and ... ept31_pg1/
http://forum.ctc.org.uk/viewforum.php?f ... aa11ee677a
Between these three links you will find every bit of advice and reference you will ever need