A few weeks ago I finally bought a dedicated GPU.
Its a passively cooled cheap ATI Radeon HD 5400 Series. 512 mb that will never break for 30 dollars sounds good to me.
I've yet to noticed anything "bad" happen, but its hard to judge since even an inefficient dedicated graphics card is better then none at all.
EDIT: To this very day, once in a blue moon I mentally chuckle and think "ponies". All the better they relate in this case.