I managed to get a higher one, or around 85k. FYI, I can't maintain that DPS in really long chains, but a quick pwn of 30-40 mobs chuck norris style can get my #s up there. When I do longer chains, into the several hundreds, or into the thousands, my DPS is closer to the 55-60k range. I think I might have done around 65k DPS in a 300-400 chain a few times.
Also, my monk Ryujin hit 99. Only 1 death. And that 1 death was me getting greedy in the lower levels trying to 5 pull for quick level ups with subpar gear (except for boots).
Also, I made an insane chain with monk. It might be the highest one anyone's done. I got a bit lazy during a chain this long and quit pushing CDs that would have boosted my DPS more. 46k DPS is a on the low side for me.