My XP2000 runs at 34C under full load.
I use a Dragon Orb III,and I also have two fans blowing in on the side of the case(onto Mobo and CPU).There are four fans blowing out.
You don't need to go that far,but you may want to get a better HSF for the cpu,and use Arctic Silver,not the thermal paste that comes with it.
Adding a slot fan blowing out wouldn't hurt either.