I just wanted to say if people enjoy getting achievements let them enjoy it isnt that whta gaming is about?

Anyway some games with easy achievements:

Naruto Broken Bond: you get a achievment for playing a online game win or lose most of the others you get 20-40g for playing the story mode.

Elder Scrolls IV Oblivion: you get achievemnets for doing quests which is what the whole game is about. overall 1250g

Gears of war 1/2: alot of gamerscore for doing campaign on diffrent difficulties.

Simpsons Game: you get a achievment for pressing start for god sake and for dieing 5 times.

Games with fun achievemnets:

Halo 3: involves skill for the online achievments unless you cheats

Left 4 Dead: great game and for online achievments and some campaign are very tricky.

Assasins Creed: get achievements for killing people how fun :D

Anywayz i hope i helped