Re: MM pve spec and rotatation ?'s
As Survival ArP isn't valued as highly as it is for Marks since the majority of your damage is magical (Explosive shot, Black Arrow, serpent sting). Agi is king even for Marks until you get into ICC-25 level gear. Pretty much just grab whatever you can (agi gems+enchants) and switch to Marks once you get a 226+ weapon.
My survival spec is pretty standard, Marks can vary a bit depending on how much hit you have (generally as Survival you can't spare points to get the +hit talent).
Both specs use priority rotations, nothing too fancy.
Surv: Kill Shot>Black Arrow>Explosive Shot>Serpent Sting>Aimed Shot>Steady Shot
Marks: Kill Shot>Chimera Shot>Aimed Shot>Steady Shot (serpent sting is refreshed by Chimera Shot)
http://femaledwarf.com is pretty good to help you gearing, its a browser version of Shandara's dps spreadsheet.