I've charged my eneloops at about 1c or 2 amps quite a few times without worry. I see the 1 hour quick chargers out there for NIMH and figure that's got to be putting out 1c or so if it takes an hour? Will have to look at one and read the output specs on it. They do get a bit warm but work perfectly fine.
I'm too impatient to wait 2hrs+ for my 2000mah TX batteries to charge using 1 amp or less