I am looking mostly at small battery powered things at the moment (5V or less).
Oh, ok. I didn't think you would exceed 400mA. You can always use a 5$ 10A current shunt with it, for those occasions.
Before you buy the UT61E, you must know that its burden voltage is probably the highest amongst the popular meters (10.83mV/mA and 670uV/uA). If you work with low voltages, take that into consideration.