thoes temps arent really normal..but they arent really bad..... but you havnt really gave information about your card....
is it stock cooling?
are you overclocking? if so to what?
Well the load sorta seems normal.
I had my xfx 6600gt doin 40c at idle.
I sold it to a friend and well Its 50c now at idle..
I just think its his case and the fact that he didnt use a air can on the dust on the card..
Good enough for him so.
my AGP card does 51ºC at idle with a Zalman VF-700 cu. Before it was doing 57ºC with stock cooler at around room temperature. Plenty of ventilation in my case too.