WordNet (r) 3.0 (2006):

self-serving
    adj 1: interested only in yourself [syn: self-serving, self-
           seeking]

Moby Thesaurus II by Grady Ward, 1.0:

68 Moby Thesaurus words for "self-serving":
   acquisitive, acquisitiveness, ambitious for self, autism, autistic,
   careerism, careerist, ego trip, egoistic, egomaniacal, egotism,
   egotistic, egotistical, grasping, graspingness, greed, greedy,
   individualism, individualistic, interest, narcissism, narcissistic,
   personal aims, personal ambition, personal desires, personalism,
   personalistic, possessive, possessiveness, privatism, privatistic,
   remote, remoteness, self-absorbed, self-absorption,
   self-admiration, self-admiring, self-advancement, self-advancing,
   self-besot, self-centered, self-centeredness, self-concerned,
   self-consideration, self-considerative, self-contained,
   self-containment, self-devoted, self-devotion, self-esteem,
   self-esteeming, self-indulgence, self-indulgent, self-interest,
   self-interested, self-interestedness, self-jealous, self-jealousy,
   self-occupation, self-occupied, self-pleasing, self-seeking,
   self-solicitude, self-sufficiency, self-sufficient, selfish,
   selfishness, selfism