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This.
I have the Dewalt DCD996 for normal drill duty (with off-brand batteries. I already had the charger around @ChainBreaker ...) - it's good with big holes in brick & wood
I've the D25133 (with the chisel & both chucks) for drilling the whole way through walls, stitch drilling concrete, and removing cement render & plaster. It's good with plaster and render, but struggles with chiselling concrete.
It depends what you need them for, really.
Corded gets you way more bang for buck. Especially second hand where a lot have only been used for one job but are designed to last 20 years of professional work. The most versatile drill I have is a Bosch hammer drill with a chisel option, sds and normal chuck. I wouldn't want to drill holes for hinges with it but it could do. Otherwise buy a small battery powered one and a decent corded sds hammer with chisel option for the larger stuff. Milwaukee have had a lot of success with their little battery drills and Bosch are pretty competitive for the larger one, probably lots about second hand.
Festool are the best IMHO but you'd blow your budget on the drill bits let alone the drill.
Bosch GBH 2000 is £99 from screwfix