My wife makes a killer cheese dip... 
  
1 brick of velveeta cut into small cubes 
2 cans of diced green chili's 
1 bag of monterey jack shredded 
1qt of salsa--2 if you like 
crock pot on low heat with ocassional stirring and BAM good stuff 
  
  
Of course you can add hamburger, sausage, hot sauce or whatever but this is the base.