+1 on the makita.
The 453 is enough drill for most DIY*, I’d say for occasional use the big 101 set IS useful, but if you’re drilling more than the odd hole in a given task get some better bits for it. It’s a handy kit in that when you suddenly realise you need a Xmm hole in Y at 9pm you can make it happen. You can normally get a kit with the 453 for about £130, try screwfix or FFX.
I’ve since got a 10.8v makita (also excellent and the light weight is good for some tight applications and general screwing), a 10.8 makita impact driver (awesome bit of kit, sort of thing I wonder how I did without), and a big 5kg corded SDS. But then I’ve been doing enough work that the time savings for having exactly the right kit pay off for me, I could’ve done all the same jobs with the 18v makita, just some would’ve been a PITA or taken ages.
For a cheaper decent 18v cordless look at the Hitachi kit at screwfix, I have one at work and it’s fine. The makita’s nicer and where my own money would go, but also more expensive.
*i’m renovating a house so my kit’s getting a workout.