I'm sure I've moaned about this tool elsewhere, but I bought two Makita drills to replace mine after a theft.
I bought a Makita BTP140RFE 18V Li-ion Cordless Combi Drill, which retails at Screwfix for £380.00 (I paid £310) and a big BHP451RFE, which will set you back another £300.
The combi drill is the WORSE peice of rubbish i ever owned and it's not just me. My mate bought one too and actually killed his on the first day, so got his money back.
I put a 18mm hole through a joist with mine, and it chucked out a load of thick grey smoke. It gets hot just driving in a few screws.
The bigger BHP451RFE, isn't too bad, but has 3 gears and crunches horribly if you tighten the chuck in anything but 1.
I miss my old Makita, I still have a Metabo, Lith Ion that I can't kill. WHich I suppose is a good sign!!!