Need Help Deciding

ok heres the situation... i want scratch that .. i need a new engine for my eg...im not planning on going all out with the motor and upgrading this and that but i want a motor thatwill last me a while.. what engine should i get.. oh yeah and im thinking along the lines of the bseries engines. was thinking k series but to expensive.. so what is the best i can get for the least amount of dough.. heh u kno i still gota pay my way thru college

and 1 more question.. anyone know a good place to get the engine and have it installed here in san diego???