I have the combs that LittleBit mentioned above...I love them. Mojo (thank goodness) doesn't mat, but this comb is perfect for the knots he sometimes gets from pulling his topknot back.
I have a slicker brush and have never used it, but I heard they work well.
We also have a natural boar bristle brush that I truly love!!!
I didn't really like the cowboy magic detangling solution much.....maybe because Mojo has never been matted (I don't know)...but that would be worth a try.
I bought some stuff from
http://sassypup.net call Fur Butter or Fur Worse...I love it!
You could probably do a search on here and find all sorts of ideas to try. There is plushpuppy (they make a lot of good stuff), some people have mentioned Aussie 3min Miracle Conditioner and Pantene Smooth/Silk (in green labeled bottle)...what else has been mentioned.....Royal Treatment Honey Oatmeal Spray Conditioner and Bio-Groom silk Cream Rinse conditioner.
Good Luck!