Nope no OCs in 2dmode, I think its because diablo 2 does use direct x 5 or 7 so maybe it does count as a 3d application. As for BF2, I'm getting it this weekend so I'll try and hopefully my temps are under 70, or at least not over 76. PZERO have you tried running the artifact scanner on ATI tool and seeing how high temps you get, for some reason that puts a HUGE stress on the system, Im thinking that will take you up to your bf2 temp.
Also I manged to low my temps 4 degrees by opening the window, before my room was about 26 degrees celcius, now its about 20. Ugh this is gonna be one aspect of summer I dont look forward to.