What Bud is kindly trying to say is,
What's your budget first of all.
What kind of tile or marble, stone,clay material are you thinking of using.Cheap box store stuff or some hand made mexican or other stuff.
What kind of designs are you looking for? Diamond patterns, regular straight install or some funky patterns.
What kind of wall are you trying to adhere these tile to? Sheetrock, formica or laminate, or do you still have existing tile?
Answer these questions to get us in a general direction.